TENDER-BUILDING-COV REVISION NO. Dec. 2018 rev 01 07 DECEMBER 2018
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BILLS OF QUANTITIES
for the
BUILDER’S WORK FOR GAS BUILDINGS
at
UNISA FLORIDA SCIENCE CAMPUS
for the
UNIVERSITY OF SOUTH AFRICA
CLIENT
University of South Africa
P O Box 392
PRETORIA
0003
CONSULTING ENGINEERS
Spoormaker & Partners Inc.
S & P House Corner Lenchen Avenue North
and South Street CENTURION
0157
TEL: (012) 663 3125 FAX: (012) 663 1960
PROJECT NO. : 16049
SPEC NO. : PT2018/36
COMPILER :
DATE : 2018 – 12 – 07
TENDERER
......................................................
......................................................
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TENDER AMOUNT (INCL VAT)
......................................................
TENDER CLOSING DATE
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TENDER-BUILDING-COV REVISION NO. Dec. 2018 rev 01 07 DECEMBER 2018
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CONTENTS
PAGE
SECTION 1 - PRELIMINARIES
Bill No. 1. Preliminaries 1 Collection for Section 1 41 SECTION 2 – GAS STORE 1
Bill No. 1. Earthworks (Provisional) 44 2. Concrete Formwork & Reinforcement 48 3. Masonry 59 4. Waterproofing 62 5. Roof Coverings, etc 65 6. Ironmongery 68 7. Metalwork 69 8. Structural Steelwork 72 9. Plastering 86 10. Plumbing & Drainage (Provisional) 87 11. Paintwork 90 12. External Works (Provisional) 93 Collection for Section 2 98
SECTION 3 – GAS STORE 2
Bill No. 1. Earthworks (Provisional) 99 2. Concrete Formwork & Reinforcement 102 3. Masonry 110 4. Waterproofing 113 5. Roof Coverings, etc 114 6. Metalwork 117 7. Structural Steelwork 118 8. Plumbing & Drainage (Provisional) 132 9. Paintwork 133 10. External Works 136 11. Builder’s Work for Plinths 141
TENDER-BUILDING-COV REVISION NO. Dec. 2018 rev 01 07 DECEMBER 2018
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Collection for Section 3 145 SECTION 4 – GAS STORE 3
Bill No. 1. Earthworks (Provisional) 146 2. Concrete Formwork & Reinforcement 149 3. Masonry 157 4. Waterproofing 161 5. Roof Coverings, etc 162 6. Metalwork 165 7. Structural Steelwork 166 8. Plumbing & Drainage (Provisional) 180 9. Paintwork 183 10. External Works (Provisional) 186 Collection for Section 4 189 SECTION 5 – GAS STORE 4
Bill No. 1. Earthworks (Provisional) 190 2. Concrete Formwork & Reinforcement 194 3. Masonry 202 4. Waterproofing 205 5. Roof Coverings, etc 206 6. Structural Steelwork 209 7. Paintwork 223 Collection for Section 5 224 SECTION 6 – BUILDER’S WORK FOR SERVICE INSTALLATIONS
Bill No. 1. Alterations 225 2. Ceilings, Partitions & Access Flooring 229 3. Structural Steel 232 4. Sleeves 239 5. Paintwork 240 6. External Works 241 Collection for Section 6 246
TENDER-BUILDING-COV REVISION NO. Dec. 2018 rev 01 07 DECEMBER 2018
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SECTION 7 - SIGNAGE
Bill No. 1. Signage 247
Collection for Section 7 249 FINAL SUMMARY 250
SPECIFICATIONS
TED - MAS - MECH - COV REVISION NO. June 2018 rev 00 07 DECEMBER 2018
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AmountItemNo
Quantity Rate
Science Campus Gas Installation
UNISA
B2051 REV 1
BILL 1 PRELIMINARIES
The JBCC Principal Building Agreement (March 2014 Edition 6.1) prepared by the Joint Building Contracts Committee shall be the applicable building agreement, amended as hereinafter described
BUILDING AGREEMENT AND PRELIMINARIES
The JBCC Principal Building Agreement contract data form an integral part of this agreement
The ASAQS Preliminaries (March 2014 edition) published by the Association of South African Quantity Surveyors for use with the JBCC Principal Building Agreement shall be deemed to be incorporated in these bills of quantities
The contractor is deemed to have referred to the abovementioned documents for the full intent and meaning of each clause
The clauses in the abovementioned documents are hereinafter referred to by clause number and heading only. Where standard clauses or alternatives are not entirely applicable to this agreement such modifications, corrections or supplements as will apply are given under each relevant clause heading and such modifications, corrections or supplements shall take precedence notwithstanding anything to the contrary contained in the abovementioned documents
Where any item is not relevant to this agreement such item is marked N/A (signifying "not applicable")
The Model Preambles for Trades (2008 edition) as published by the Association of South African Quantity Surveyors shall be deemed to be incorporated in these bills of quantities and no claims arising from brevity of description of items fully described in the said Model Preambles will be entertained
PREAMBLES FOR TRADES
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Supplementary preambles are incorporated in these bills of quantities to satisfy the requirements of this project. Such supplementary preambles shall take precedence over the provisions of the Model Preambles
The contractor's prices for all items throughout these bills of quantities shall take account of and include for all of the obligations, requirements and specifications given in the Model Preambles and in any supplementary preambles
Should the contractor select Option A in terms of clause 26.9.4 of the contract data for the purpose of adjustment of these preliminaries, the amount entered into the amount column in these preliminaries is to be divided into one or more of the three categories provided namely fixed (F), value related (V) and time related (T)
F = An amount which shall not be varied
V = An amount which shall be varied in proportion to the contract value as compared with the contract sum
T = An amount which shall be varied in proportion to the construction period as compared to the initial construction period excluding revisions to the construction period for which the contractor is not entitled to adjustment of the contract value in terms of the agreement
PRICING OF PRELIMINARIES
SECTION A: PRINCIPAL BUILDING AGREEMENT
Clause 1.0 - Definitions and interpretation1
Interpretation (A1-A7)
Pricing of bills of quantities
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The contractor is to allow opposite each item for all costs in connection therewith. All prices to include, unless otherwise stated, for all materials, fabrication, conveyance and delivery, unloading, storing, unpacking, hoisting, labour, setting, fitting and fixing in position, cutting and waste (except where to be measured in accordance with the standard system of measurement), patterns, models and templates, plant, temporary works, returning of packaging, duties, taxes, imposts, establishment charges, overheads, profit and all other obligations arising out of the agreement
Items left unpriced will be deemed to be covered in prices against other items throughout these bills of quantities and no claim for any extras arising out of the contractor's omission to price any item will be entertained
Prices for all plant, temporary works, services and other items shall include for the supply, maintenance, operating cost and subsequent removal and making good as necessary
Legal status of contractor
If the contractor constitutes a joint venture consortium or other unincorporated grouping of two or more personsthen:
1. These persons are deemed to be jointly and severallyliable to the employer for the performance of this agreement
2. These persons shall notify the employer of their leader who has authority to bind the contractor and each of these persons
3. The contractor shall not alter its composition or legal status without the prior written consent of the employer
ItemF:............................. V:............................ T:............................
Clause 2.0 - Law, regulations and notices2
Health and safety
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Without limiting the generality of the provisions of clause 2.0, the contractor's attention is drawn to the provisionsof Construction Regulations issued in terms of the Occupational Health and Safety Act, 1993. It is specifically stated that the employer shall prepare a documented health and safety specification for the works and that the employer shall ensure that the contractor has made provision for the cost of health and safety measures during the execution of the works. The contractor shall price opposite this item for compliance with the act and the regulations and the provisions of the aforementioned health and safety specification [2.1]
The contractor shall:
1. Comply with the health and safety specification for theworks
2. Prepare and agree with the health and safety consultant the health and safety plan for the works
3. Co-operate with the health and safety consultant in all respects
4. Manage the compliance of all subcontractors with the regulations and with the health and safety plan and specification
5. Conform to the conditions contained in the employer's safety specification
ItemF:............................. V:............................ T:............................
Clause 3.0 - Offer and acceptance3
ItemF:............................. V:............................ T:............................
Clause 4.0 - Assignment and cession4
ItemF:............................. V:............................ T:............................
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Clause 5.0 - Contract documents5
Value Added Tax
Provision is made in the summary page of these bills of quantities for the inclusion of Value Added Tax (VAT)
Contract drawings
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The contract drawings are herewith listed:ARCHITECTURAL0001 Rev A: SDPGas Building 1:1000 Rev I: Plans2000 Rev F: Sections3000 Rev E: ElevationsGas Building 2&3:1000 Rev F Plans2000 Rev C Sections3000 Rev C ElevationsGas Building 4:1200 Rev D Plans, Sections, ElevationsSTRUCTURALS-000 Rev A: Structural NotesS-100 Rev C: Gas Store 1 Plan Layout & SectionsS-101 Rev C: Gas Store 1 FoundationS-102 Rev B: Gas Store 1 DetailsS-103 Rev A: Gas Store 1 DetailsS-150 Rev A: Gas Store 1 Pipe BridgeS-400 Rev A: Gas Store 4 Plan Layout & SectionsS-500 Rev A: HVAC Roof Top Units Layout & DetailsS-501 Rev A: HVAC Roof Top Units Structure 1S-502 Rev A: HVAC Roof Top Units Structure 2S-503 Rev A: HVAC Roof Top Units Structure 3S-1205 Rev B: Store 2 Foundation DetailsS-1206 Rev B: Store 2 Plan Layout Roof & SectionS-2301 Rev A: Gas Store 3 Foundation Layout & DetailsS-2302 Rev A: Gas Store 3 Roof Plan & DetailsC-1010 Rev A: Changes to Parking Layout; Parking Area 11C-1200 Rev A: Services LayoutC-1250 Rev A: Generator Concrete DetailsJOHANNESBURG ROAD AGENCY STANDARD STORMWATER DETAILSJRA-JD-SW-020 Kerb Inlets Plans & ElevationsJRA-JD-SW-021 Kerb Inlets SectionsJRA-JD-SW-022 Kerb Inlets Slab DetailsJRA-JD-SW-023 Kerb Inlets Kerb, Apron & Front DetailsJRA-JD-SW-050 Manhole DetailsJRA-JD-SW-051 Stepped Manhole Design DetailsJRA-JD-SW-070 Field Inlet DetailsJRA-JD-SW-071 Grid InletJRA-JD-SW-090 Bedding of Stormwater PipesJRA-JD-SW-091 Reinstatement of Road LayersFIRE16049-F-FP-4GF-FP Rev B: Fire Protection Layout
Priced document as specification
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The principal agent shall decide which portion of the priced document may be used as a specification of materials and goods or methods, if any [5.3]
Electronic issue of drawings
Drawings for this project may be issued electronically and the contractor shall be deemed to have received such drawings on the date that such drawings have been dispatched electronically [5.5]
ItemF:............................. V:............................ T:............................
Clause 6.0 - Employer's agents6
Delegated authority
The authority of the principal agent to perform duties for specific aspects of the works is delegated to the agents as follows [6.2]:
1. Architect
The architect is responsible for the architectural design, functional design and quality inspection. Without derogating from the generality thereof the architect will perform the following specific functions and duties:
1.1 Give opinion on aspects of the works which are not in accordance with the agreement
1.2 Supply the specified number of drawings
1.3 Issue instructions if bills of quantities is to be used as a specification
1.4 Be responsible for primary co-ordination of design elements
1.5 Receive through the contractor and accept design documentation undertaken by subcontractors
1.6 Issue instructions to the contractor regarding:
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1.6.1 Alteration to design, quality or quantity of the works provided that such instructions shall not substantially change the scope of the works
1.6.2 Removal of any materials and goods from the site and the substitution of any materials and goods therefor
1.6.3 Removal or re-execution of any work
1.6.4 Opening up of work for inspection
1.6.5 Testing of work and materials and goods
1.6.6 Protection of the works
1.6.7 Making good physical loss and repairing damage to the works
1.6.8 Lists for practical completion and final completion
1.6.9 Compliance with Acts of Parliament, regulations and bylaws
1.7 Witness the handing over to the contractor of pegs, beacons and datum levels
1.8 Define levels and provide the contractor with the necessary information to set out the works
1.9 Acceptance of design by subcontractors
1.10 Inspect the works from time to time and give the contractor interpretation and guidance on the standard and state of completion required for practical completion
1.11 Inspect the works for practical completion
1.12 Issue the list for practical completion and re-inspect upon request of the contractor
1.13 Issue the certificate of practical completion
1.14 Inspect the works at the end of the defects liability period
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1.15 Issue the list for final completion and re-inspect upon request of the contractor
1.16 Issue the certificate of final completion
2. Quantity surveyor
The quantity surveyor is responsible for all measurements, valuations, financial assessments and all other quantity surveying and cost control functions. Without derogating from the generality thereof, the quantity surveyor will perform the following specific functions and duties:
2.1 Consult with the contractor in correction of rates or errors and discrepancies
2.2 Complete the contract data
2.3 Supply the specified number of unpriced bills of quantities
2.4 Identify in the contract data any changes to the standard JBCC documentation and determine any loss and expense to the contractor caused by non-disclosure thereof
2.5 Deal with amounts paid by the contractor to authorities having jurisdiction over the works
2.6 Measure and value the making good of physical loss or damage
2.7 Issue instructions to the contractor regarding:
2.7.1 Rectification of discrepancies and errors in description or omissions in contract documents
2.7.2 Furnishing proof of payment to subcontractors
2.7.3 Budgetary allowances and work executed by the contractor
2.7.4 Contingency and other monetary provisions included in the contract sum
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2.8 Prepare nominated and/or selected subcontract tender documents
2.9 Receive proof from the contractor that the contractor's payment obligations have been met in respect of subcontractors
2.10 Act on employer's instructions to pay subcontractors directly
2.11 Adjustment of the contract value in respect of a revision to the date of practical completion
2.12 Calculate penalties for non-completion upon receipt of the relevant information from the principal agent
2.13 Valuation of payment claims for payment certificates
2.14 Calculate default and compensatory interest (if any) due to the parties
2.15 With each valuation for payment issue:
2.15.1 A statement to the contractor and each subcontractor showing the amount certified for the relevant subcontractor
2.15.2 A statement to the employer and contractor showing the total amount certified
2.15.3 A recovery statement
2.16 Determine the value of adjustments to the contract value
2.17 Receive from the contractor details of expense and loss claims and assess such claims
2.18 Prepare the final account and submit to the contractor
3. Civil and structural engineer
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The civil and structural engineer is responsible for all aspects of civil and structural engineering design and quality inspection. Without derogating from the generality thereof, the civil and structural engineer will perform the following specific functions and duties in respect of the civil and structural engineering aspects of the works:
3.1 Give opinion on aspects of the works which are not in accordance with the agreement
3.2 Supply the specified number of drawings
3.3 Issue instructions if bills of quantities is to be used as a specification
3.4 Receive and accept design documentation undertaken by subcontractors
3.5 Issue instructions to the contractor regarding:
3.5.1 Alteration to design, quality or quantity of the works provided that such instructions shall not substantially change the scope of the works
3.5.2 Removal of any materials and goods from the site and the substitution of any materials and goods therefor
3.5.3 Removal or re-execution of any work
3.5.4 Opening up of work for inspection
3.5.5 Testing of work and materials and goods
3.5.6 Protection of the works
3.5.7 Making good physical loss and repairing damage to the works
3.5.8 Compliance with Acts of Parliament, regulations and bylaws
3.6 Define levels and provide the contractor with the necessary information to set out the works
3.7 Acceptance of design by subcontractors
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3.8 Inspect the works from time to time and give the contractor interpretation and guidance on the standard and state of completion required for practical completion
3.9 Inspect the works for practical completion
3.10 Issue the list for practical completion and re-inspect upon request of the contractor
3.11 Inspect the works at the end of the defects liability period
3.12 Issue the list for final completion and re-inspect upon request of the contractor
4. Mechanical engineer
The mechanical engineer is responsible for all the aspects of mechanical engineering design and quality inspection and, where appointed by the employer for quantity surveying services in respect of the mechanical installations, for all measurements, valuations, financial assessments and all other quantity surveying and cost control functions. Without derogating from the generality thereof the mechanical engineer will perform the following specific functions and duties in respect of the mechanical engineering aspects of the works:
4.1 Give opinion on aspects of the works which are not in accordance with the agreement
4.2 Supply the specified number of drawings
4.3 Issue instructions if bills of quantities is to be used as a specification
4.4 Receive and accept design documentation undertaken by subcontractors
4.5 Issue instructions to the contractor regarding:
4.5.1 Alteration to design, quality or quantity of the works provided that such instructions shall not substantially change the scope of the works
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4.5.2 Removal of any materials and goods from the site and the substitution of any materials and goods therefor
4.5.3 Removal or re-execution of any work
4.5.4 Opening up of work for inspection
4.5.5 Testing of work and materials and goods
4.5.6 Protection of the works
4.5.7 Making good physical loss and repairing damage to the works
4.5.8 Compliance with Acts of Parliament, regulations and bylaws
4.6 Provide the contractor with the necessary information to set out the works
4.7 Acceptance of design by subcontractors
4.8 Inspect the works from time to time and give the contractor interpretation and guidance on the standard and state of completion required for practical completion
4.9 Inspect the works for practical completion
4.10 Issue the list for practical completion and re-inspect upon request of the contractor
4.11 Inspect the works at the end of the defects liability period
4.12 Issue the list for final completion and re-inspect upon request of the contractor
4.13 Quantity surveying functions and duties:
4.13.1 Consult with the contractor and/or subcontractors in correction of rates or errors and discrepancies
4.13.2 Supply the specified number of unpriced bills of quantities
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4.13.3 Deal with amounts paid by the contractor and/or subcontractors to authorities having jurisdiction over the works
4.13.4 Measure and value the making good of physical loss or damage
4.13.5 Issue instructions to the contractor regarding:
1 Rectification of discrepancies and errors in description or omissions in contract documents
2 Furnishing proof of payment to subcontractors
3 Budgetary allowances and work executed by the contractor and/or subcontractors
4 Contingency and other monetary provisions included in the contract sum
4.13.6 Prepare nominated and/or selected subcontract tender documents
4.13.7 Valuation of payment claims for payment certificates
4.13.8 Determine the value of adjustments to the contract value
4.13.9 Receive from the contractor and/or subcontractors details of expense and loss claims and assess such claims
4.13.10 Prepare the final account and submit to the contractor and/or subcontractors as the case may be
5. Electrical engineer
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The electrical engineer is responsible for all aspects of electrical engineering design and quality inspection and, where appointed by the employer for quantity surveying services in respect of the electrical installations, for all measurements, valuations, financial assessments and all other quantity surveying and cost control functions. Without derogating from the generality thereof the electrical engineer will perform the following specific functions and duties in respect of the electrical engineering aspects of the works:
5.1 Give opinion of aspects of the works which are not in accordance with the agreement
5.2 Supply the specified number of drawings
5.3 Issue instructions if bills of quantities is to be used as a specification
5.4 Receive and accept design documentation undertaken by subcontractors
5.5 Issue instructions to the contractor regarding:
5.5.1 Alteration to design, quality or quantity of the works provided that such instructions shall not substantially change the scope of the works
5.5.2 Removal of any materials and goods from the site and the substitution of any materials and goods therefor
5.5.3 Removal or re-execution of any work
5.5.4 Opening up of work for inspection
5.5.5 Testing of work and materials and goods
5.5.6 Protection of the works
5.5.7 Making good physical loss and repairing damage to the works
5.5.8 Compliance with Acts of Parliament, regulations and bylaws
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5.6 Provide the contractor with the necessary information to set out the works
5.7 Acceptance of design by subcontractors
5.8 Inspect the works from time to time and give the contractor interpretation and guidance on the standard and state of completion required for practical completion
5.9 Inspect the works for practical completion
5.10 Issue the list for practical completion and re-inspect upon request of the contractor
5.11 Inspect the works at the end of the defects liability period
5.12 Issue the list for final completion and re-inspect upon request of the contractor
5.13 Quantity surveying functions and duties:
5.13.1 Consult with the contractor and/or subcontractors in correction of rates or errors and discrepancies
5.13.2 Supply the specified number of unpriced bills of quantities
5.13.3 Deal with amounts paid by the contractor and/or subcontractors to authorities having jurisdiction over the works
5.13.4 Measure and value the making good of physical loss or damage
5.13.5 Issue instructions to the contractor regarding:
1 Rectification of discrepancies and errors in description or omissions in contract documents
2 Furnishing proof of payment to subcontractors
3 Budgetary allowances and work executed by the contractor and/or subcontractors
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4 Contingency and other monetary provisions included in the contract sum
5.13.6 Prepare nominated and/or selected subcontract tender documents
5.13.7 Valuation of payment claims for payment certificates
5.13.8 Determine the value of adjustments to the contract value
5.13.9 Receive from the contractor and/or subcontractors details of expense and loss claims and assess such claims
5.13.10 Prepare the final account and submit to the contractor and/or subcontractors as the case may be
6. Wet services engineer
The wet services engineer is responsible for all the aspects of wet services engineering design and quality inspection. Without derogating from the generality thereof the wet services engineer will perform the following specific functions and duties in respect of the wet services aspects of the works:
6.1 Give opinion on aspects of the works which are not in accordance with the agreement
6.2 Supply the specified number of drawings
6.3 Issue instructions if bills of quantities is to be used as specification
6.4 Receive and accept design documentation undertaken by subcontractors
6.5 Issue instructions to the contractor regarding:
6.5.1 Alteration to design, quality or quantity of the works provided that such instructions shall not substantially change the scope of the works
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6.5.2 Removal of any materials and goods from the site and the substitution of any materials and goods therefor
6.5.3 Removal or re-execution of any work
6.5.4 Opening up of work for inspection
6.5.5 Testing of work and materials and goods
6.5.6 Protection of the works
6.5.7 Making good physical loss and repairing damage to the works
6.5.8 Compliance with Acts of Parliament, regulations and bylaws
6.6 Provide the contractor with the necessary information to set out the works
6.7 Acceptance of design by subcontractors
6.8 Inspect the works from time to time and give the contractor interpretation and guidance on the standard and state of completion required for practical completion
6.9 Inspect the works for practical completion
6.10 Issue the list for practical completion and re-inspect upon request of the contractor
6.11 Inspect the works at the end of the defects liability period
6.12 Issue the list for final completion and re-inspect upon request of the contractor
7. Fire consultant
The fire consultant is responsible for all the aspects of rational fire design and quality inspection. Without derogating from the generality thereof the fire consultant will perform the following specific functions and duties in respect of the rational fire design aspects of the works:
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7.1 Give opinion on aspects of the works which are not in accordance with the agreement
7.2 Supply the specified number of drawings
7.3 Issue instructions if bills of quantities is to be used as specification
7.4 Receive and accept design documentation undertaken by subcontractors
7.5 Issue instructions to the contractor regarding:
7.5.1 Alteration to design, quality or quantity of the works provided that such instructions shall not substantially change the scope of the works
7.5.2 Removal of any materials and goods from the site and the substitution of any materials and goods therefor
7.5.3 Removal or re-execution of any work
7.5.4 Opening up of work for inspection
7.5.5 Testing of work and materials and goods
7.5.6 Protection of the works
7.5.7 Making good physical loss and repairing damage to the works
7.5.8 Compliance with Acts of Parliament, regulations and bylaws
7.6 Provide the contractor with the necessary information to set out the works
7.7 Acceptance of design by subcontractors
7.8 Inspect the works from time to time and give the contractor interpretation and guidance on the standard and state of completion required for practical completion
7.9 Inspect the works for practical completion
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7.10 Issue the list for practical completion and re-inspect upon request of the contractor
7.11 Inspect the works at the end of the defects liability period
7.12 Issue the list for final completion and re-inspect upon request of the contractor
8. Health and safety consultant
The health and safety consultant is responsible for all aspects of health and safety. Without derogating from the generality thereof, the health and safety consultant will perform the following specific functions and duties in respect of the health and safety aspects of the works:
8.1 Act as the client's (employer's) agent in terms of Construction Regulations issued in terms of the Occupational Health and Safety Act, 1993
8.2 Prepare and update the health and safety specification for the works
8.3 Agree with the contractor the health and safety planfor the works
8.4 Carry out regular audits to ensure adherence to the safety plan and compliance with the Act and Regulations
7
ItemF:............................. V:............................ T:............................
Clause 7.0 - Design responsibility8
ItemF:............................. V:............................ T:............................
Clause 8.0 - Works risk9
Insurance and security (A8-A11)
ItemF:............................. V:............................ T:............................
Clause 9.0 - Indemnities10
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ItemF:............................. V:............................ T:............................
Clause 10.0 - Insurances11
ItemF:............................. V:............................ T:............................
Clause 11.0 - Security12
ItemF:............................. V:............................ T:............................
Clause 12.0 - Duties of the parties13
Execution (A12 - A17)
Existing premises are to be occupied [12.1.2]
It is noted that the work will be undertaken in a live operating environment. Contractors are required to take cognisance of this in their construction planning and construction methodology. Special attention must be given to keeping noise and dust due to construction activities to a minimum. Certain construction activities may need to be undertaken after hours where they impact / interface with the public and tenants. After hours means between 19h00 and 06h00. The contractor is required to provide adequate written notice (minimum 7 days) to the Principal Agent and/or Construction Manager for all work impacting on operations and the public so that this can be communicated to the affected parties and contingency arrangements made.
14
Preservation of known Services [12.1.3]
The contractor is to take care not to damage existing services.
Access to Water, Sewer, Stormwater & Electricity Connections [12.1.4]
Defined Restrictions to the Site [12.1.5]
The contractor must restrict his activities inside the demarcated site lay down areas as well as the hoarded areas and may not extend his operations beyond these boundaries.
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Enclosure of the works [ 12.1.15]
The contractor shall erect, maintain and remove at completion hoardings with gantries, fans, safety screens, barriers, access gates, covered gangways and the like as necessary for the enclosure of the works and elements thereof, all for the protection of the public and others
Allow for all hoarding, gates, signage, etc as indicated, including erection, maintenance, changing as necessary and removal thereof on completion
Hoarding to be of good quality 2,2 m high of galvanised IBR profiled sheet iron, fixed to timber gum pole construction at 2m intervals, gum poles mounted in movable barrels, all to the approval of the architect
Barrier tape needs to be in accordance with safety regulations
15
Office Accommodation [12.2.18]
The contractor shall erect, maintain and remove at completion airconditioned office accommodation with suitable tables and chairs for meetings to be held on the site. Such offices shall be kept clean and fit for use at all times [12.2.18]
Notice Boards [15.2.18]
The contractor shall erect in a position approved by the principal agent, maintain and remove at completion a notice board as recommended by the South African Institute of Architects listing the names and logos of the employer, the contractor and the professional consultants. No subcontractor or supplier notice boards may be erected [12.2.18]
ItemF:............................. V:............................ T:............................
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Clause 13.0 - Setting out
Encroachments
The contractor shall notify the principal agent if any encroachment of adjoining foundations, buildings, structures, pavements, boundaries, services, etc exist in order that the necessary arrangements may be made forthe rectification of any such encroachments [13.2.1]
16
ItemF:............................. V:............................ T:............................
Clause 14.0 - Nominated subcontractors17
ItemF:............................. V:............................ T:............................
Clause 15.0 - Selected subcontractors18
ItemF:............................. V:............................ T:............................
Clause 16.0 - Direct contractors
The following contractors will be procured directly by UNISA Estates: - Gas Detection Installation - Gas Installation - HVAC Installation - Electrical Installation (including Earthing & Lightning Protection and Electronics)
A Construction Manager will be appointed to co-ordinate all the works and the contractor is to allow for the access by others to be executed in accordance with the Construction Manager's Construction Programme. The contractor is to take cognisance of the nature of the works as measured under Section 5 of this Bills of Quantities and is deemed to have allowed for such.
19
Attendance on direct contractors
In respect of direct contractors the contractor shall:
20
1. Designate an area for the direct contractor toestablish a temporary office and workshop andstorage of equipment and materials
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2. Allow the use of personnel welfare facilities, where
provided
3. Provide water, lighting and single phase electric power
to a position within 50m of the place where the direct
contract work is to be carried out, other than fuel or
power for commissioning of any installation
4. Permit the direct contractor to use erected scaffolding, hoisting facilities, etc provided by
thecontractor, in common with others having the
likeright while it remains erected on the site [16.1]
ItemF:............................. V:............................ T:............................
Clause 17.0 - Contract instructions
Instructions issued on site are to be recorded in a site instruction book which is to be supplied and maintained on site by the contractor
21
ItemF:............................. V:............................ T:............................
Clause 18.0 - Interim completion22
Completion (A18 - A24)
ItemF:............................. V:............................ T:............................
Clause 19.0 - Practical completion23
ItemF:............................. V:............................ T:............................
Clause 20.0 - Sectional completion24
ItemF:............................. V:............................ T:............................
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Clause 21.0 - Defects liability period and final completion
25
ItemF:............................. V:............................ T:............................
Clause 22.0 - Latent defects liability period 26
ItemF:............................. V:............................ T:............................
Clause 23.0 - Revision of date for practical completion
Substitution of materials and goods
The removal or substitution of any materials and goodswhich do not conform to the specification or the contract drawings shall not constitute grounds for the extension of the construction period nor for the adjustment of the contract value [17.1.8, 23.1 & 2]
27
ItemF:............................. V:............................ T:............................
Clause 24.0 - Penalty for late or non-completion28
ItemF:............................. V:............................ T:............................
Clause 25.0 - Payment29
Payment (A25 - A27)
Materials and goods stored off site
The inclusion of materials and goods stored off site in the amount authorised for payment shall be at the sole discretion of the principal agent and such inclusion shall only be considered upon the provision, by the contractor, of an approved security [25.3.2]
Fluctuations in costs
All fluctuations in costs, with the exception of fluctuations in the rate of Value Added Tax, shall be for the account of the contractor [25.3.4]
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Prices submitted
Where prices are submitted by the contractor or subcontractor during the progress of the works in respect of contract instructions or in regard to a claim under the terms of the agreement and notwithstanding the fact that such prices may be used in an interim payment certificate, there is to be no presumption of acceptance. Should the principal agent wish to accept any such prices prior to the issue of the certificate of final completion, it shall be in writing
30
ItemF:............................. V:............................ T:............................
Clause 26.0 - Adjustment of the contract value and final account
31
Cost of claims
All costs incurred by the contractor in the preparation of claims shall be borne by the contractor
The contractor shall review, assess and adjudicate any claims received by him from any subcontractor and thereafter submit same to the principal agent with a recommendation to assist the principal agent in adjudicating the claim [26.6]
32
ItemF:............................. V:............................ T:............................
Clause 27.0 - Recovery of expense and/or loss33
ItemF:............................. V:............................ T:............................
Clause 28.0 - Suspension by the contractor34
Suspension and termination (A28 - A29)
ItemF:............................. V:............................ T:............................
Clause 29.0 - Termination35
ItemF:............................. V:............................ T:............................
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Clause 30.0 - Dispute resolution36
Dispute resolution (A30)
ItemF:............................. V:............................ T:............................
Agreement
The required information of the parties and the amount of the contract sum shall be inserted in the agreement for signature of the agreement by the parties
37
ItemF:............................. V:............................ T:............................
Contract data
Before submission of his tender the contractor is to complete the tenderer's selection in the contract data
38
ItemF:............................. V:............................ T:............................
SECTION B: PRELIMINARIES
Item
Clause 1.1 - Definitions
F:............................. V:............................ T:............................
39
Interpretation (B1)
Item
Clause 1.2 - Interpretation
F:............................. V:............................ T:............................
40
Item
Clause 2.1 - Checking of documents
F:............................. V:............................ T:............................
41
Documents (B2)
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Item
Clause 2.2 - Provisional bills of quantities
F:............................. V:............................ T:............................
42
Item
Clause 2.3 - Availability of construction information
F:............................. V:............................ T:............................
43
Item
Clause 3.1 - Previous work - dimensional accuracy
F:............................. V:............................ T:............................
44
Previous work and adjoining properties (B3)
Item
Clause 3.2 - Previous work - defects
F:............................. V:............................ T:............................
45
Item
Clause 3.3 - Inspection of adjoining properties
F:............................. V:............................ T:............................
46
Item
Clause 4.1 - Samples of materials
F:............................. V:............................ T:...........................
47
Samples, shop drawings and manufacturer's instructions (B4)
Item
Clause 4.2 - Workmanship samples
F:............................. V:............................ T:............................
48
Item
Clause 4.3 - Shop drawings
F:............................. V:............................ T:............................
49
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Item
Clause 4.4 - Compliance with manufacturer's instructions
F:............................. V:............................ T:............................
50
Item
Clause 5.1 - Deposits and fees
F:............................. V:............................ T:............................
51
Deposits and fees (B5)
Item
Clause 6.1 - Water
F:............................. V:............................ T:............................
52
Temporary services (B6)
Item
Clause 6.2 - Electricity
F:............................. V:............................ T:............................
53
Item
Clause 6.3 - Ablution and welfare facilities
F:............................. V:............................ T:............................
54
Item
Clause 6.4 - Communication facilities
F:............................. V:............................ T:............................
55
Item
Clause 7.1 - Responsibility for prime cost amounts
F:............................. V:............................ T:............................
56
Prime cost amounts (B7)
Item
Clause 8.1 - General attendance
F:............................. V:............................ T:............................
57
Attendance on subcontractors (B8)
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Item
Clause 8.2 - Special attendance
F:............................. V:............................ T:............................
58
Item
Clause 9.1 - Protection of the works
F:............................. V:............................ T:............................
59
General (B9)
Item
Clause 9.2 - Protection/isolation of existing/sectionally occupied works
F:............................. V:............................ T:............................
60
Item
Clause 9.3 - Security of the works
F:............................. V:............................ T:............................
61
Item
Clause 9.4 - Notice before covering work
F:............................. V:............................ T:............................
62
Item
Clause 9.5 - Disturbance
F:............................. V:............................ T:............................
63
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Item
Clause 9.6 - Environmental disturbance
Controlling all forms of pollution
The contractor shall be responsible for and take all precautions in controlling by whatever means necessary all forms of pollution during the construction period due inter alia to noise, artificial light, wind-blown sand, dust, deposits of mud, etc
The contractor is to ensure that all roads which border the site and is used by the contractor during the execution of the works are kept clean and free of any dirt or debris caused by the execution of the worksClause 8.2 - Special attendance
F:............................. V:............................ T:............................
64
Item
Clause 9.7 - Works cleaning and clearing
F:............................. V:............................ T:............................
65
Item
Clause 9.8 - Vermin
F:............................. V:............................ T:............................
66
Item
Clause 9.9 - Overhand work
F:............................. V:............................ T:............................
67
Information for completion of schedule
Information necessary for elections and completion of those clauses contained in the schedule which are necessary for tender purposes is given hereunder. Where no information is given it shall mean that no specific requirements are expected or that the clause is not relevant to this specific contract
68
Schedule (B10)
10.1 -Provisional bills of quantities [2.2]
The quantities are provisional No
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10.2 -Availability of construction information [2.3]
Construction documentation is complete Yes
10.3 -Previous work - dimensional accuracy [3.1]
10.4 -Previous work - defects [3.2]
10.5 - Inspection of adjoining properties [3.3]
10.6 - Water [6.1]
Option A (by contractor) No Option B (by employer - free of charge) No Option C (by employer - metered) Yes
10.7 - Electricity [6.2]
Option A (by contractor) NoOption B (by employer - free of charge) NoOption C (by employer - metered) Yes
10.8 - Ablution and welfare facilities [6.3]
Option A (by contractor) YesOption B (by employer) No
10.9 - Communication facilities [6.4]
10.10 - Protection of the works [9.1]
10.11 - Protection/isolation of existing/sectionally occupied works [9.2]
Protection/isolation is required No
10.12 - Disturbance [9.5]
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Item
Access
It is noted that some of the works to existing buildings may be within access controlled areas for which the contractor will be responsible to apply for temporary access cards for. This will be in strict accordance with UNISA's rules and regulations, and may require necessary documentation (ID Documents, Medicals, etc.) for which the contractor is to allow.
The staff employed by the contractor are to fully identify themselves at all times by means of ID Cards, Reflective Vests, Overalls, and all other such Personal Protective Equipment as deemed necessary.
69
SECTION C: SPECIFIC PRELIMINARIES
Item
As built drawings
The position of construction breaks and the extent of individual concrete pours are to be recorded by the contractor on the structural engineer's drawings and are to be submitted to the principal agent and the structural engineer for their records
As built drawings of all services etc should be kept up to date and hand over to principal agent at practical completion
F:............................. V:............................ T:............................
70
Item
Confidentiality
The contractor undertakes to maintain in confidence any and all information regarding this project and shall obtain appropriate similar undertakings from all subcontractors and suppliers. Such information shall not be used in any way except in connection with the execution of the works
No information regarding this project shall be published or disclosed without the prior written consent of the employer
F:............................. V:............................ T:............................
71
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Item
Contract instructions
Contract instructions issued on site are to be recorded in triplicate in a contract instruction book which is to be supplied and maintained by the contractor
F:............................. V:............................ T:............................
72
Item
Co-operation of the contractor for cost management
It is specifically agreed that the contractor accepts the obligation of assisting the principal agent in implementing proper cost management. The contractor will be advised by the principal agent of all cost management procedures which will be implemented to ensure that the final building cost does not exceed the budget
F:............................. V:............................ T:............................
73
Item
Drawings and dimensions
Upon receipt of detail drawings for any works, the contractor shall, before putting that work in hand, ascertain that the dimensions given on the detail drawings correspond with the dimensions of any work already built
In the event of a discrepancy between the detail drawings and the work already built, the discrepancy shall be brought to the principal agent's attention who shall decide the procedure
All drawings used on the works shall be properly mounted on suitable sheet material, or otherwise protected and kept in good condition. Any drawings becoming bleached ot otherwise obscured so that they cannot be properly read shall be returned to the principal agent for replacement, as any errors due to misreading of damaged or obscured drawings shall be made good by the contractor at his own expense
F:............................. V:............................ T:............................
74
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Item
Inspection by principal agent
The principal agent shall make such visits to the works as he may from time to time deem necessary. In the event of any matter arising which the contractor considers of such importance that the principal agent must be consulted, every reasonable attempt shall be made by the contractor to communicate with him before proceeding with the point at issue
It must, however, be borne in mind that the principal agent is employed, to ensure correct compliance with the terms of this agreement, proper building procedures in accordance with the best traditions of the various trades and adequate finishes as specified and to his satisfaction
The principal agent is thus in no way responsible for any act or omission on the part of the contractor which may result in any patent or latent defects in materials or workmanship, breach or neglect of any local regulations. The contractor therefor remains at all times responsible for any neglect, deviation or wrong act, whether the same be discovered before or after the final completion certificate, or any other certificate is issued
F:............................. V:............................ T:............................
75
Item
Media releases
All rights of publication of articles in the media, together with any advertising relating thereto or in any way connected with this project, shall vest with the employer
The contractor together with his subcontractors shall not, without the prior written consent of the employer, cause any statement or advertisement to be printed, screened or aired by the media
F:............................. V:............................ T:............................
76
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Item
Non cession of monies
The contractor shall not cede nor assign his rights or claims to any monies due or to become due under this contract and no purported cession or assignment will be recognised without the written consent of the employer
F:............................. V:............................ T:............................
77
Item
Overloading
The contractor shall take all necessary steps to ensure that no damage occurs due to overloading of any portionof the works or temporary works eg scaffolding, etc. The contractor shall submit details of his proposed loading, storage, plant erection, etc to the principal agent for approval prior to proceeding with such loading, storing or erecting and shall comply with and pay for the principal agent's requirements in connection with the provision of temporary support work, etc. Any damage caused to the works by overloading shall be made good by the contractor at his sole expense
F:............................. V:............................ T:............................
78
Item
Overtime
Should overtime be required to be worked for any reason whatsoever, the costs of such overtime is to be borne by the contractor unless the principal agent has specifically authorised, in a contract instruction, prior to execution thereof, that costs for such overtime are to be for the employer
F:............................. V:............................ T:............................
79
85,000.00Item
Overtime
Allow the amount of R85,000.00 (Eighty Five Thousand Rand) for extra over cost associated with work outside of normal working hours, including work on weekends and public holidays
80
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Item
Setting out of buildings
A registered Land Surveyor employed by the contractor shall set out the building, gather all relevant data such as datum levels, platform heights etc. and hand these information to the principal agent in an electronic format
F:............................. V:............................ T:............................
81
Schedule of Rates
The following information is required to determine the costs of overtime work
ItemRate Only - Artisan rate / hour82
LABOUR: Normal Rate
ItemRate Only - Technician rate / hour83
ItemRate Only - Labourer/Assistant rate / hour84
ItemRate Only - Site Agent rate / hour85
ItemRate Only - Foreman rate / hour86
ItemRate Only - General Foreman rate / hour87
ItemRate Only - Artisan rate / hour88
LABOUR: After Hour Overtime Rate
ItemRate Only - Technician rate / hour89
ItemRate Only - Labourer/Assistant rate / hour90
ItemRate Only - Site Agent rate / hour91
ItemRate Only - Foreman rate / hour92
ItemRate Only - General Foreman rate / hour93
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ItemRate Only - Artisan rate / hour94
LABOUR: Sunday & Public Holiday Overtime Rate
ItemRate Only - Technician rate / hour95
ItemRate Only - Labourer/Assistant rate / hour96
ItemRate Only - Site Agent rate / hour97
ItemRate Only - Foreman rate / hour98
ItemRate Only - General Foreman rate / hour99
Item Rate Only - Small Tools rate / hour100
PLANT: Normal Rate
Item Rate Only - General Equipment rate / hour101
Item Rate Only - Pneumatic Tools rate / hour102
Item Rate Only - Scaffolding rate / hour103
Item Rate Only - TLB rate / hour (including operator and fuel)
104
Item Rate Only - Bobcat rate / hour (including operator and fuel)
105
Item Rate Only - Dumper rate / hour (including operator and fuel)
106
Item Rate Only - Small Tools rate / hour107
PLANT: After Hours Overtime Rate
Item Rate Only - General Equipment rate / hour108
Item Rate Only - Pneumatic Tools rate / hour109
Item Rate Only - Scaffolding rate / hour110
Item Rate Only - TLB rate / hour (including operator and fuel)
111
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Item Rate Only - Bobcat rate / hour (including operator and fuel)
112
Item Rate Only - Dumper rate / hour (including operator and fuel)
113
Item Rate Only - Small Tools rate / hour114
PLANT: Sundays & Public Holidays Overtime Rate
Item Rate Only - General Equipment rate / hour115
Item Rate Only - Pneumatic Tools rate / hour116
Item Rate Only - Scaffolding rate / hour117
Item Rate Only - TLB rate / hour (including operator and fuel)
118
Item Rate Only - Bobcat rate / hour (including operator and fuel)
119
Item Rate Only - Dumper rate / hour (including operator and fuel)
120
Item
Testing of flat roof waterproofing for watertightness
Flat roof waterproof areas shall be prepared with small sand dykes around them of a size and enclosing an area approved by the principal agent, flooded with water and kept "ponded" for at least forty (40) hours as a test to ensure the watertightness of the waterproofing and before any further construction work is carried out above the waterproofing
F:............................. V:............................ T:............................
121
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Item
Warranties for materials and workmanship
Where warranties for materials and/or workmanship are called for, the contractor shall obtain a written warranty,addressed to the employer, from the entity supplying the materials and/or doing the work and shall deliver same to the principal agent on the final completion of the contract
The warranty shall state that workmanship, materials and installation are warranted for a specific period from the date of final completion and that any defects that may arise during the specified period shall be made good at the expense of the entity supplying the materialsand/or doing the work, upon written notice to do so
The warranty will not be enforced if the work is damaged by defects in the execution of the works, in which case the responsibility for replacement shall rest entirely with the contractor
F:............................. V:............................ T:............................
122
Category : Fixed R........................................
Category : Value R........................................
Category : Time R........................................
SUMMARY OF CATEGORIES
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BILL 1
EARTHWORKS (PROVISIONAL)
SUPPLEMENTARY PREAMBLES
Use "assumed to be" if no trial holes, soils investigations, etc have been carried out - discuss with engineer. Use "Trial holes indicate that" where the ground has been investigated by means of trial holes
Nature of ground
"Hard rock” shall mean granite, quartzitic sandstone or other rock of similar hardness, the removal of which requires drilling, wedging and splitting or the use of explosives.
“Soft rock” shall mean hard material the removal of which warrants the use of pneumatic tools and includes hard shale, ferricite, compact ouklip and material of similar hardness.
“Earth” shall mean all ground other than that classified as “hard rock” or “soft rock” and shall include madeup ground and any loose stones or pieces of concrete not exceeding 0,03 m3 in volume.
Descriptions of carting away of excavated material shall be deemed to include loading excavated material onto trucks directly from the excavations or, alternatively, from stock piles situated on the building site
Carting away of excavated material
EXCAVATION, FILLING, ETC OTHER THAN BULK
125m3Trenches1
Excavation in earth not exceeding 2m deep
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Earthworks (Provisional)Bill No. 1SECTION 2 - GAS STORE 1Section No. 2
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6m3Soft rock2
Extra over trench and hole excavations in earth for excavation in
4m3Hard rock3
61m3Surplus material from excavations and/or stock piles on site to a dumping site to be located by the contractor
4
Extra over all excavations for carting away
216m2Sides of trench and hole excavations exceeding 1,5m deep
5
Risk of collapse of excavations
ItemKeeping excavations free of all water other than subterranean water
6
Keeping excavations free of water
64m3Backfilling to trenches, holes, etc7
Earth filling obtained from the excavations and/or prescribed stock piles on site compacted to 93%Mod AASHTO density
495m3Under floors, steps, pavings, etc8
Earth filling (Type G6) supplied by the contractor compacted to 95% Mod AASHTO density
28m3Backfilling to trenches, holes, etc9
146m2
Compaction of ground surface under floors etc including scarifying for a depth of 150mm, breaking down oversize material, adding suitable material where necessary and compacting to 93% Mod AASHTO density
10
Compaction of surfaces
10No"Modified AASHTO Density" test11
Prescribed density tests on filling
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Earthworks (Provisional)Bill No. 1SECTION 2 - GAS STORE 1Section No. 2
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UNISA
B2051 REV 1
SOIL POISONING
319m2
Under floors etc including forming and poisoning shallow furrows against foundation walls etc, filling in furrows and ramming
12
Soil insecticide
325m2To bottoms and sides of trenches etc13
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Earthworks (Provisional)Bill No. 1SECTION 2 - GAS STORE 1Section No. 2
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Earthworks (Provisional)
Section No. 2
Bill No. 1
AmountPageNo
SECTION 2 - GAS STORE 1
COLLECTION
Science Campus Gas Installation
UNISA
B2051 REV 1
46
45
44Total Brought Forward from Page No.
-47-
Earthworks (Provisional)Bill No. 1SECTION 2 - GAS STORE 1Section No. 2
Carried Forward to Summary of Section No. 2 R
AmountItemNo
Quantity Rate
Science Campus Gas Installation
UNISA
B2051 REV 1
BILL 2
CONCRETE, FORMWORK AND REINFORCEMENT
For preambles refer to "Model Preambles for Trades"
PREAMBLES
SUPPLEMENTARY PREAMBLES
The costs of making, storing and testing of concrete test cubes as required under clause 7 "Tests" of SANS 1200 G shall include the cost of providing cube moulds necessary for the purpose for testing costs and for submitting reports on the test to the Principal Agent. The testing shall be undertaken by an independent firm or institution nominated by the contractor to the approval of the Principal Agent. (Test cubes are measured separately)
Cost of tests
-48-
Concrete Formwork & ReinforcementBill No. 2SECTION 2 - GAS STORE 1Section No. 2
Carried to Collection R
Science Campus Gas Installation
UNISA
B2051 REV 1
Descriptions of formwork shall be deemed to include use and waste only (except where described as "left in" or "permanent"), for fitting together in the required forms, wedging, plumbing and fixing to true angles and surfaces as necessary to ensure easy release during stripping and for reconditioning as necessary before re-use
The vertical strutting shall be carried down to such construction as is sufficiently strong to afford the required support without damage and shall remain in position until the newly constructed work is able to support itself
Formwork to soffits of solid slabs, etc shall be deemed to be to slabs not exceeding 250mm thick unless otherwise described
Formwork to soffits of slabs, beams, etc shall be deemed to be propped up exceeding 1,50m and not exceeding 3,50m high unless otherwise described
Formwork to sides of bases, pile caps, ground beams, etc will only be measured where it is prescribed by the engineer for design reasons
Formwork
Formwork necessitated by irregularity or collapse of excavated faces will not be measured and the cost thereof shall be deemed to be included in the allowance for taking the risk of collapse of the sides of the excavations, provision for which is made in "Earthworks"
The vertical strutting shall be carried down to such construction as is sufficiently strong to afford the required support without damage and shall remain in position until the newly constructed work is able to support itself.
Formworks to soffits of solid etc shall be deemed to be slabs not exceeding 250mm thick unless otherwise described
Formwork necessitated by irregularity or collapse of excavated faces will not be measured and the cost thereof shall be deemed to be included in the allowance for taking the risk of collapse of the sides of the excavations, provision for which is made in "Earthworks"
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Concrete Formwork & ReinforcementBill No. 2SECTION 2 - GAS STORE 1Section No. 2
Carried to Collection R
Science Campus Gas Installation
UNISA
B2051 REV 1
SPECIFICATION FOR SOILCRETE
Soilcrete shall consist of an approved soil or gravel
mixed with 10 % by mass of Portland Cement and only
sufficient water to give it a consistency that will permit
the soilcrete to be placed, using vibrators. The material
used for soilcrete shall be sandy granular material of the
following specifications:
s Minimum Grading Modulus: 1,2
s Maximum Plasticity Index: 10 %
s Maximum particle size: 38 mm
s Detrimental percentages of silt and clay shall be
avoided.
The soilcrete shall be mixed on site using suitable
concrete mixers and the water and cement contents
shall be carefully controlled. It shall be placed and
thoroughly compacted by means of concrete vibrators
so that all voids are filled.
SPECIFICATION FOR PLAIN AND REINFORCED
CONCRETE
The Standardized Specification for Civil Engineering
Construction of the South African Bureau of Standards
shall apply throughout in respect of this contract, in
addition to the additions and saving the exceptions set
out below:
A copy of the said specification shall be furnished by the
contractor and shall be kept on the site.
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Concrete Formwork & ReinforcementBill No. 2SECTION 2 - GAS STORE 1Section No. 2
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Science Campus Gas Installation
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B2051 REV 1
PROJECT SPECIFICATION
1. Applicable standardized and particular
specifications
For the purposes of this contract the following
standardized and particular specification shall
apply
SANS 1200 G: CONCRETE (STRUCTURAL)
FINISHING WITH MECHANICAL TROWEL
Power floating should not commence until
such time as the concrete surface has lost its
sheen and barely shows footprints.
All laitance on the surface of the fresh
concrete screed resulting from the compaction
of concrete must be struck off prior to
mechanical trowelling.
Over trowelling, causing an excessive cement-
water paste to come to the surface, must be
strictly avoided.
CURING
Curing should commence as soon as finishing
operations have been completed and should
be continued for at least 7 days. The method
of curing must be approved by the engineer.
JOINTS
The joints should be formed by cutting grooves
3 mm wide by 25 mm deep into the screed.
These joints must be aligned to the joints in
the structural slabs or the slabs on fill, and
must be cut within 8 hours of placing the
screed.
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Concrete Formwork & ReinforcementBill No. 2SECTION 2 - GAS STORE 1Section No. 2
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Science Campus Gas Installation
UNISA
B2051 REV 1
All smooth formwork must be cleaned, all unevenesses removed and properly prepared to be finished (finish elsewhere)
SMOOTH FORMWORK
UNREINFORCED CONCRETE
5m3Surface blinding under strip footings1
10MPa/19mm concrete
REINFORCED CONCRETE CAST AGAINST EXCAVATED SURFACES
27m3Strip footings2
25MPa/19mm concrete
82m3Surface beds 3
11m3Surface beds in patchwork4
REINFORCED CONCRETE
1m3Ramps laid to falls5
25MPa/19mm concrete
38m3Walls in foundations (Provisional)6
30MPa/19mm concrete
100m3Walls 7
82m3Walls on top of existing retaining wall (Provisional)8
3m3Isolated beams9
16m3Slabs including beams and inverted beams10
1m3Stairs including landings, beams and inverted beams11
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Concrete Formwork & ReinforcementBill No. 2SECTION 2 - GAS STORE 1Section No. 2
Carried to Collection R
Science Campus Gas Installation
UNISA
B2051 REV 1
105NoMaking and testing 150 x 150 x 150mm concrete strength test cube
12
TEST BLOCKS
CONCRETE SUNDRIES
319m2Surface beds13
Finishing top surfaces of concrete with a broom finish
12m2Ramps laid to falls14
ROUGH FORMWORK (DEGREE OF ACCURACY III)
263m2Walls in foundations (Provisional)15
Rough formwork to sides
71m2Walls circular on plan in foundations (Provisional)16
20m2Walls17
115m2Walls propped up more than 3.5m and not exceeding 5.0m high
18
190m2Walls propped up more than 5.0m and not exceeding 6.5m high (Provisional)
19
44m2Walls circular on plan propped up more than 3.5m and not exceeding 5.0m high
20
66m2Walls circular on plan propped up more than 5.0m and not exceeding 6.5m high (Provisional)
21
112m2Walls on top of existing retaining walls propped up more than 3.5m and not exceeding 5.0m high (Provisional)
22
134m2Walls on top of existing retaining walls propped up more than 5.0m and not exceeding 6.5m high (Provisional)
23
3m2Edges, risers, ends and reveals exceeding 300mm high or wide in foundations (Provisional)
24
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Concrete Formwork & ReinforcementBill No. 2SECTION 2 - GAS STORE 1Section No. 2
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B2051 REV 1
SMOOTH FORMWORK (DEGREE OF ACCURACY II)
20m2Walls25
Smooth formwork to sides
115m2Walls propped up more than 3.5m and not exceeding 5.0m high
26
190m2Walls propped up more than 5.0m and not exceeding 6.5m high (Provisional)
27
44m2Walls circular on plan propped up more than 3.5m and not exceeding 5.0m high
28
66m2Walls circular on plan propped up more than 5.0m and not exceeding 6.5m high (Provisional)
29
112m2Walls on top of existing retaining walls propped up more than 3.5m and not exceeding 5.0m high (Provisional)
30
134m2Walls on top of existing retaining walls propped up more than 5.0m and not exceeding 6.5m high (Provisional)
31
108m2Walls on top of existing retaining walls propped up more than 6.5m and not exceeding 8m high (Provisional)
32
11mEdges, risers, ends, etc not exceeding 300mm high or wide above concrete
33
23m2Slabs propped up exceeding 1.50m and not exceeding 3.50m high
34
Smooth formwork to soffits
23m2Slabs propped up exceeding 5.0m and not exceeding 6.50m high
35
4m2Stairs with sloping soffits36
12m2Inside of beams above concrete37
Smooth formwork to sides
17m2Inside of beams circular on plan above concrete38
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Concrete Formwork & ReinforcementBill No. 2SECTION 2 - GAS STORE 1Section No. 2
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B2051 REV 1
8m2Beams propped up exceeding 3.50m and not exceeding 5.0m high
39
8m2Beams propped up exceeding 5.0m and not exceeding 6.5m high
40
12m2Beams circular on plan propped up exceeding 3.50m and not exceeding 5.0m high
41
12m2Beams circular on plan propped up exceeding 5.0m and not exceeding 6.5m high
42
26m2Isolated beams propped up exceeding 1.5m and not exceeding 3.5m
43
Smooth formwork to sides and soffits
43m60 x 255mm High horizontal projection to side44
Boxing out smooth formwork to form
13m60 x 255mm High horizontal projection circular on plan to side
45
43m20 x 20mm Chamfer along top or bottom edge46
Boxing in smooth formwork to form
13m20 x 20mm Chamfer along top or bottom edge circular exceeding 1m radius
47
64m40 x 40mm Rebate to top edge48
6No1050 x 130 x 230mm Opening 49
1No44 110mm x 500mm x 230mm Opening 50
MOVEMENT JOINTS ETC
156m10mm Joints not exceeding 300mm high51
Expansion joints with 10mm softboard between vertical concrete and brick surfaces
REINFORCEMENT
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Concrete Formwork & ReinforcementBill No. 2SECTION 2 - GAS STORE 1Section No. 2
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B2051 REV 1
2.551t12mm Diameter bars52
Mild steel reinforcement to structural concrete work
2.551t10mm Diameter bars53
2.551t8mm Diameter bars54
5.385t32mm Diameter bars55
High tensile steel reinforcement to structural concrete work
5.385t25mm Diameter bars56
5.385t20mm Diameter bars57
5.385t16mm Diameter bars58
5.385t12mm Diameter bars59
5.385t10mm Diameter bars60
319m2Type Ref 193 fabric reinforcement in concrete surface beds, slabs, etc
61
Fabric reinforcement
168m2Type Ref 617 fabric reinforcement in concrete surface beds, slabs, etc
62
SUNDRIES
419No
12mm Diameter dowel bar 750mm long with one end embedded 150mm deep in side of concrete and other end greased and wrapped in polythene sheeting including hole 300mm deep into existing concrete including scabble of existing concrete to expose aggregate and clean and apply wet to dry epoxy ABE 344 or similar approved
63
High tensile steel dowel bars
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Concrete Formwork & ReinforcementBill No. 2SECTION 2 - GAS STORE 1Section No. 2
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B2051 REV 1
151No
16mm Diameter dowel bar 1100mm long with one end embedded 300mm deep in top of concrete and other end greased and wrapped in polythene sheeting including hole 300mm deep into existing concrete including scabble of existing concrete to expose aggregate and clean and apply wet to dry epoxy ABE 344 or similar approved
64
18No255mm Reinforced concrete slab, beam, wall, etc65
Core drilling of hole for pipe exceeding 100mm and not exceeding 300mm diameter
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Concrete Formwork & ReinforcementBill No. 2SECTION 2 - GAS STORE 1Section No. 2
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Concrete Formwork & Reinforcement
Section No. 2
Bill No. 2
AmountPageNo
SECTION 2 - GAS STORE 1
COLLECTION
Science Campus Gas Installation
UNISA
B2051 REV 1
57
56
55
54
53
52
51
50
49
48Total Brought Forward from Page No.
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Concrete Formwork & ReinforcementBill No. 2SECTION 2 - GAS STORE 1Section No. 2
Carried Forward to Summary of Section No. 2 R
AmountItemNo
Quantity Rate
Science Campus Gas Installation
UNISA
B2051 REV 1
BILL 3
MASONRY
For preambles refer to "Model Preambles for Trades"
PREAMBLES
SUPPLEMENTARY PREAMBLES
BRICKWORK
Where sizes in descriptions are given in brick units, "one brick" shall represent the length and "half brick" the width of a brick
Sizes in descriptions
Descriptions of hollow walls are deemed to include for leaving every fifth perpend of the bottom course of the external skin open as a weep hole
Hollow walls etc
Descriptions of solid walls (except if built in English bond) and cavity walls shall be deemed to include hot-dipped galvanised wall ties complying with SABS 28 and of the butterfly or of the modified PWD type, of the required length with each end built at least 75mm deep into brickwork, spaced at not more than 1m centres alternatively to every third course of brickwork
Wall ties
Descriptions of recessed pointing to fair face brickwork and face brickwork shall be deemed to include square recessed, hollow recessed, weathered pointing, etc
Pointing
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MasonryBill No. 3SECTION 2 - GAS STORE 1Section No. 2
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Science Campus Gas Installation
UNISA
B2051 REV 1
Samples of all masonry building units, except those for walls described as "load bearing", shall consist of a minimum of 6 units. Samples of building units to be used in walls described as "load bearing" shall consist of30 units from every 30 000 units delivered to site
Samples
SUPERSTRUCTURE
Non-bearing brickwork
477m2One brick walls1
Brickwork in NFP bricks (7MPa nominal compressive strength) in class II mortar with all joints grouted in solid with liquid cement mortar
BRICKWORK SUNDRIES
1,407m150mm Wide reinforcement built in horizontally2
Brickwork reinforcement
FACE BRICKWORK
954m2Extra over brickwork for face brickwork3
Approved external face bricks (FBX) with a PC Amount of R5 000.00 per thousand bricks delivered to site (excluding VAT) recessed pointed horizontal and vertical joints with cement mortar to match colour of face bricks
140mCoping on top of one brick wall4
EXTERIOR WALL FINISHES
679m2Cladding to concrete walls5
60mm Ledge stones to match existing Ceres Building
110m2Cladding to concrete walls circular on plan6
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MasonryBill No. 3SECTION 2 - GAS STORE 1Section No. 2
Carried to Collection R
Masonry
Section No. 2
Bill No. 3
AmountPageNo
SECTION 2 - GAS STORE 1
COLLECTION
Science Campus Gas Installation
UNISA
B2051 REV 1
60
59Total Brought Forward from Page No.
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MasonryBill No. 3SECTION 2 - GAS STORE 1Section No. 2
Carried Forward to Summary of Section No. 2 R
AmountItemNo
Quantity Rate
Science Campus Gas Installation
UNISA
B2051 REV 1
BILL 4
WATERPROOFING
For preambles refer to "Model Preambles for Trades"
PREAMBLES
SUPPLEMENTARY PREAMBLES
Waterproofing of roofs, basements, etc shall be laid under a ten year guarantee. Waterproofing to roofs shall be laid to even falls to outlets etc with necessary ridges, hips and valleys. Descriptions of sheet or membrane waterproofing shall be deemed to include additional labour to turn-ups and turn-downs
Waterproofing
DAMPPROOFING OF WALLS AND FLOORS
32m2In walls1
One layer of 375 micron "Consol Plastics Brikgrip DPC" embossed damp proof course
266m2Under surface beds2
One layer of 250 micron "Consol Plastics Gunplas USB Green" waterproof sheeting sealed at laps with "Gunplas Pressure Sensitive Tape"
WATERPROOFING TO ROOFS, BASEMENTS, ETC
46m2On flat roofs3
Two layers Derbigum SP4 waterproofing membrane, with 75mm side laps and 100mm end laps, sealed to primed surface to falls and crossfalls by 'torchfusion'Waterproofing to be installed by an Approved Derbigum Contractor under a ten year guarantee
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WaterproofingBill No. 4SECTION 2 - GAS STORE 1Section No. 2
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B2051 REV 1
12m2To upstand beams4
17m2To upstand beams circular on plan5
16mSealing edges to brickwork or concrete 6
23mSealing edges to brickwork or concrete circular on plan7
2NoAdditional membrane at 100mm diameter outlet8
PROTECTIVE ROOFING PAINT
75m2On waterproofing to roofs9
Two coats "Roofcote" heavy duty acrylic emulsion paint
SUNDRIES
30,000.00Item
Allow the amount of R30 000,00 (Thirty Thousand Rand) for work or cost which cannot entirely foreseen, defined or detailed
10
Budgetary allowance
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WaterproofingBill No. 4SECTION 2 - GAS STORE 1Section No. 2
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Waterproofing
Section No. 2
Bill No. 4
AmountPageNo
SECTION 2 - GAS STORE 1
COLLECTION
Science Campus Gas Installation
UNISA
B2051 REV 1
63
62Total Brought Forward from Page No.
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WaterproofingBill No. 4SECTION 2 - GAS STORE 1Section No. 2
Carried Forward to Summary of Section No. 2 R
AmountItemNo
Quantity Rate
Science Campus Gas Installation
UNISA
B2051 REV 1
BILL 5
ROOF COVERINGS ETC
For preambles refer to "Model Preambles for Trades"
PREAMBLES
SUPPLEMENTARY PREAMBLES
Descriptions of all roof coverings are deemed to include for all straight cutting
Straight cutting
The roof covering and cladding is to be carried out strictly in accordance with the manufacturer's instruction. On completion the roof covering and accessories are to be inspected by the Manufacturer who is to provide a 5 year guarantee against defective materials and faulty workmanship
The roof is to be guaranteed weather tight for a period of 5 years period, calculated from the handed over date of the completed project
Guarantee
PROFILED METAL SHEETING AND ACCESSORIES
277m2Roof covering with pitch not exceeding 25 degrees1
0,58mm "Brownbuilt Klip-lok 700" Z275 spelter embossed galvanised troughed sheet steel with "Global duro-coat" finish to one side in single lengths fixed to steel purlins or rails (purlins and rails elsewhere) and including 0,8mm embossed galvanised sheet steel accessories with "Global duro-coat" finish to one side
10mFK79 Sidewall flashing 408mm girth twice times bent and notched on site to suit roof profile
2
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Roof Coverings etcBill No. 5SECTION 2 - GAS STORE 1Section No. 2
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B2051 REV 1
44mFK78 Headwalll flashing 375mm girth twice times bent and notched on site to suit roof profile
3
70mSerrated closers to ridges, hips, valleys, headwalls, etc4
SPECIALIST WORK
80,000.00ItemAllow the amount of R80 000.00 (Eighty Thousand Rand) for roof louvres
5
Roof Louvres
ItemProfit6
ItemAttendance7
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Roof Coverings etcBill No. 5SECTION 2 - GAS STORE 1Section No. 2
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Roof Coverings etc
Section No. 2
Bill No. 5
AmountPageNo
SECTION 2 - GAS STORE 1
COLLECTION
Science Campus Gas Installation
UNISA
B2051 REV 1
66
65Total Brought Forward from Page No.
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Roof Coverings etcBill No. 5SECTION 2 - GAS STORE 1Section No. 2
Carried Forward to Summary of Section No. 2 R
AmountItemNo
Quantity Rate
Science Campus Gas Installation
UNISA
B2051 REV 1
BILL 6
IRONMONGERY
For preambles refer to "Model Preambles for Trades"
PREAMBLES
SUPPLEMENTARY PREAMBLES
Where applicable finishes to ironmongery are indicated by suffixes in accordance with the following list: BS Satin bronze lacquered CH Chromium plated SC Satin chromium plated SE Silver enamelled GE Grey enamelled AS Anodised silver AB Anodised bronze AG Anodised gold ABL Anodised black PB Polished brass PL Polished and lacquered PT Epoxy coated SD Sanded
Finishes to ironmongery
LOCK SETS
4NoAllow the amount of R1200/No for lockset to doors1
Approved
4NoLabour, waste, fixing material, etc on the above2
4NoProfit and attendance on the above3
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IronmongeryBill No. 6SECTION 2 - GAS STORE 1Section No. 2
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AmountItemNo
Quantity Rate
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UNISA
B2051 REV 1
BILL 7
METALWORK
SUPPLEMENTARY PREAMBLES
Descriptions of bolts shall be deemed to include nuts and washers
Descriptions
Descriptions of expansion anchors and bolts and chemical anchors and bolts shall be deemed to include nuts, washers and mortices in brickwork or concrete
Metalwork described as"holed for bolt(s)" shall be deemed to exclude the bolts unless otherwise described
SUNDRY STEELWORK
72m45 x 45 x 3mm Thick angle section including fish tail lugs at 300mm centres casted into concrete
1
Bearers to brick linings, lintels, etc
43m
45 x 45 x 3mm Thick angle section including holes for and including M12 chemical anchors at 500mm centres bolted to concrete
2
SUNDRY GALVANIZED STEELWORK
32No
"Mentex A60" grating floor panels, 1125 x 1004mm banded with and including 40 x 3mm bearer bars and bolted to concrete with and including M12 chemical anchor bolts at 500mm centres
3
Galvanized expanded gratings
PRESSED STEEL TRANSFORMER ROOM DOORS AND FRAMES
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MetalworkBill No. 7SECTION 2 - GAS STORE 1Section No. 2
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B2051 REV 1
4NoSingle door, size 900 x 2 150mm high 4
"Durowin" Purpose made steel transformer room door and frame including vents, with one coat red oxide, to suit 230mm wall supplied complete including ironmongery
ALUMINIUM LOUVRE UNITS
1NoLouvre, size 44 110 x 500mm high5
Purpose made powder coated aluminium louvre units with fixed louvre grills plugged to brickwork or concrete
PIPE BRIDGE
4NoPipe rack fixed to concrete wall6
Pipe rack fixed to concrete wall complete to Engineers detail (See drawings attached to the back of these Bills of Quantities) (Dwg: 18990-S-150 Rev A)
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MetalworkBill No. 7SECTION 2 - GAS STORE 1Section No. 2
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Metalwork
Section No. 2
Bill No. 7
AmountPageNo
SECTION 2 - GAS STORE 1
COLLECTION
Science Campus Gas Installation
UNISA
B2051 REV 1
70
69Total Brought Forward from Page No.
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MetalworkBill No. 7SECTION 2 - GAS STORE 1Section No. 2
Carried Forward to Summary of Section No. 2 R
AmountItemNo
Quantity Rate
Science Campus Gas Installation
UNISA
B2051 REV 1
BILL 8
STRUCTURAL STEELWORK
For preambles refer to "Model Preambles for Trades"
PREAMBLES
SUPPLEMENTARY PREAMBLES
Descriptions of bolts shall be deemed to include nuts and washers
Descriptions
Descriptions of L-shaped and U-shaped anchor bolts shall be deemed to include bending, threading, nuts and washers and embedding in concrete
Descriptions of expansion anchors and bolts and chemical anchors and bolts shall be deemed to include nuts, washers and mortices in brickwork or concrete
Descriptions of L-shaped and U-shaped anchor bolts shall be deemed to include bending, threading, nuts and washers and embedding in concrete. Where anchor bolts are described as embedded in sides or soffits of concrete it shall be deemed to include holes through formwork.
Descriptions of expansion anchors and bolts and chemical anchors and bolts shall be deemed to include nuts, washers and mortices in brickwork or concrete.
SPECIFICATION FOR STRUCTURAL STEELWORK
The Standardized Specification for Civil Engineering Construction of the South African Bureau of Standards shall apply throughout in respect of this contract in addition to the additions and saving the exceptions set out below.
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Structural SteelworkBill No. 8SECTION 2 - GAS STORE 1Section No. 2
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EQUIVALENCY OF STANDARDS
Wherever reference is made in the Contract to SANSstandards and/or code requirements to be met by thegoods and materials to be furnished, work performed ortested, the provisions of the latest edition or revision ofthe relevant SANS standards and codes in effect shallapply, unless otherwise stated in the Contract.Whenever reference is made to SANS standards andcodes, other authoritative standards and codes thatensure an equal or higher quality than the relevantSANS standards and codes, will be accepted subject tothe Project Engineer’s prior review and written consent.Differences between the standards specified and theproposed alternative standards shall be fully describedin writing by the Tenderer/Contractor and submitted tothe Project Engineer at least twenty eight days prior tothe date when the Contractor/Tenderer desires theProject Engineer’s consent. In the event that the ProjectEngineer determines that such deviations are not of ahigh enough or better standard, the Tenderer/Contractorshall comply with the specified document.
A copy of the said specification shall be furnished by theContractor and shall be kept on the site.
A list of British specifications which are deemed to beequivalent to the relevant SANS specifications are listedat the end of this specification.
PROJECT SPECIFICATION
Should a requirement of the said standardizedspecification be inconsistent with a requirement of theproject specification, the latter shall take precedence.
1. APPLICABLE SPECIFICATIONS
SANS 1200 H: STRUCTURAL STEELWORKSANS 1200 HC: CORROSION PROTECTION
OF STRUCTURAL STEELWORK
THE SUBCLAUSES OF SANS 1200 H ARE AMENDED AS FOLLOWS
2.1 Subclause 3: Structural steel
The steel shall be Grade 350W for hot rolled steel sections (I, H, C, L). All other
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Structural SteelworkBill No. 8SECTION 2 - GAS STORE 1Section No. 2
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rolled steel sections (I, H, C, L). All other members shall carry the Grade 300W steel symbol to identify steel grade prior to manufacturing.
The thickness specified of a checker (“vastrap”) floor plate, is the under-pattern thickness.
2.2 Subclause 5.1 and subsubclause 5.1.2: Contractor provides shop details
The contractor shall furnish the engineer with shop-detail drawings within two weeks of having received the design drawings. Workshop drawings shall be drawn in Stru-Cad. The engineer will check the drawings for conformity with design requirements andwill return the drawings with additions and corrections, if any, within one week of having received them. Detailed checking of shop details for dimensional accuracy and installation fit, will not be done by the engineer.
2.3 Subsubclause 5.2.3: Cutting
The edges of flame-cut plates shall be ground smooth.
2.4 Subsubclause 5.6.1: Grouting responsibility
Grouting shall be done by the Main contractor.
2.5 Subsubclause 5.3.4: Welding
2.5.1 The applicable welding code for (a) All welders shall be coded
welders. (b)(d) The Engineer may at his
discretion identify welds for non-destructive
(e) No staggered or intermittent welding is permitted.
(f) No welding on site is permitted unless approved by the engineer. Any site welder and site welding procedure will
(h) The Contractor shall submit for
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B2051 REV 1
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Structural SteelworkBill No. 8SECTION 2 - GAS STORE 1Section No. 2
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review an outline of the Quality Control
2.5.2 Weld testing
2.5.2.1 General
a. Personnel
performing non-
destructive testing
other than visual
shall be qualified
in accordance
with the
stipulations of the
code.
b. Full penetration
butt welds are to
be radio
graphically tested
in accordance
with (2.5.2.2)
below). A
minimum of 50%
of full penetration
welds shall be
tested. If more
than 5% of the
examined welds
show
unsatisfactory
results, then
additional
examinations
covering all welds
shall be
performed.
2.5.2.2 Non-destructive examination
a. Non-destructive
procedures,
techniques and
acceptance
criteria shall be as
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required by AWS
D1.1.
b. All non-
destructive
examination shall
be in accordance
with written
procedures. The
Engineer shall
have the right to
examine and
approve the
written
procedures.
c. Full penetration
but welds shall be
radio graphically
tested or
ultrasonically
tested to the
requirements of
AWS D1.1.
d. Ultrasonic and
radiographic
examinations
shall not be made
within the period
of 24 hours after
completion of
welding.
e. Cost of
examination
listed under
to be borne
by the
Contractor.
f. All costs (time,
travelling, tests)
incurred by non-
destructive
examinations due
to non-
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conformance of
specifications and
due to any latent
defects in material
and welding shall
be borne by the
Contractor.
g. Fillet welds will be
inspected and
tested to AWS
D1.1 at the
discretion of the
Engineer.
h. Certificates of
non-destructive
testing shall be
submitted to the
Engineer.
Subsubclause 8.3.6: Measurement of andpayment for protective coating
Surface preparation, priming, shop and sitepainting shall be measured in m² of surfacetreated.
2.7 Subclause 7.1: Test certificates
Test certificates pertaining to the steel to beused shall be submitted to the engineer bythe contractor before fabricationcommences.
The engineer reserves the right to inspectall structural steel in the workshop before itis delivered to the site.
2.8 Subsubclause 6.2.2: Other tolerances
Degree of accuracy II shall apply unlessindicated otherwise elsewhere.
ADDITIONAL CLAUSES
3.1 Protective treatment and painting
3.1.1 General
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3.1.1.1 All paint shall be delivered at the workshop as well as on the site in the original containers that display the manufacturer’s name and trademark as well as the SABS mark. The engineer may, at his discretion, prescribe the manufacturer and the type of paint.
The coating system shall be from one manufacturer only. The paint manufacturer’s instructions shall be strictly adhered to.
3.1.1.2 Surfaces in contact with each other after assembly or erection shall receive the primer beforehand, except for faying surfaces for friction-grip fasteners.
3.1.1.3 The application of the final coats of paint before erection will be permitted by the engineer only in special circumstances or where specified elsewhere.
3.1.1.4 After erection of the steelwork, the specified paint system shall be reinstated in all areas where it has been damaged. All fasteners shall also be treated in accordance with the specified paint system.
3.1.1.5 No painting on the site shall be done in inclement weather or when humidity or frost is
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Structural SteelworkBill No. 8SECTION 2 - GAS STORE 1Section No. 2
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liable to cause wet or damp conditions on the surface to be painted.
3.1.1.6 No painting shall be done
if the temperature fallsbelow 7° C.
3.1.1.7 Welded seams shall be thoroughly steel-brushed before painting. Permission shall be obtained from the engineer before slag residue may be neutralized with acids or alkalis.
3.1.2 Surface preparation in the workshop
SIS 05 59 00 or ISO 8501 shall apply and shall be referred to in respect of this clause.
3.1.2.1 Manual scraping and wire brushing. This treatment shall normally be applied in all circumstances except if and where blast cleaning is specified.
- Prior to treatment, the steel surface shall be cleaned of dirt and grease
- Heavier layers of rust shall be removed by chipping
- All loose mill scale, rust and foreign matter shall be removed by very thorough scraping, wire-brushing, machine-brushing, grinding, etc
- Finally the surface
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Structural SteelworkBill No. 8SECTION 2 - GAS STORE 1Section No. 2
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shall be cleaned by vacuum cleaner, with clean dry compressed air, or with a clean brush
- The surface shall have a pronounced metallic sheen with an appearance equal to or better than that shown on the prints designated ST 3 in SIS 05 59 00 or ISO 8501
3.1.2.2 Blast-cleaning
This treatment may be used but is not obligatory unless so specified hereinafter. If blast cleaning is preferred to normal scraping and wire brushing, the final surface shall be equal to or better than that specified in subsubclause 3.1.2.1.
Paint system
The paint system shall be applied in accordance with the specifications given in table 3.1 below. Application may be by brush, roller or sprayed. Red lead may not be used.
All structural steel which is not visible, eg purlins, rafters and trusses, shall receive only the primer coat. All visible steel shall receive the full appropriate paint system treatment.
In all cases the manufacturer’s specification for any paint product must be followed.
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Paint system for newly galvanized surfaces
3.2.1 Recommended surface preparation:
- Degrease with Plascon Aquasole Degreaser GR 1 or similar approved. Any cement or foreign material must also be removed from the metal surface.
- Rinse with clean running water while protecting the floors and walls.
- Wash with Galvanised Iron Cleaner GIC 1 by Plascon, or similar approved.
- Rinse with clean running water and allow to dry. Protect the floors and walls.
3.2.2 Apply one coat of Plascon Aquafast Etch Primer no EMS 18 or similar approved to a total dry thickness of 35 micron. Must be overcoated within 72 hours to avoid excessive hardening.
3.2.3 One final coat as specified in table 3.1.
HOT DIPPED GALVANIZING (See also subclause 5.9in SANS 1200H)
Steelwork described as "galvanised" shall begalvanised after manufacturing and beforedelivering to site by means of the hot dippedprocess complying with the minimumrequirements of SANS 121 (SABS ISO 1461),1999 latest amendment. Structural steelmembers shall be given an 85 micron thickgalvanised coating or such other thickness asmay be specified in accordance with SANS 121(SABS ISO 1461) (Table 1.)Damaged surfaces must be thoroughly cleanedand if welding has been carried out all slag mustbe removed preferably by the use of a chiselhammer.
Before galvanising all surfaces of the metalworkshall be thoroughly cleaned of all scale and rust
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by shot-blasting in accordance with SANS 10064or by pickling and then fluxed ready forgalvanising.
The zinc coating shall be even and continuousover all surfaces, free of bare spots, dull or roughpatches, blisters or other imperfections. The zinccoating shall show no signs of peeling and shallbe uniform in thickness.
All M8 and greater bolts, nuts, screws and otherthreaded components, shall be hot-dip galvanisedto SANS 121 (SABS ISO 1461) (previouslyarticles type C.)
Repairing of damaged coatings
Plant repairs
Should any black spots or uncoated areas greaterthan 5 mm2 (individual) or 25 mm2 (collective) perm2 or per m run be present after galvanizing, thecoating shall be repaired. This is to be carried outusing abrasive blasting following by zinc metalspray. The zinc metal spray shall be applied atleast 25 % thicker than that specified and shalloverlap the damaged area by 20-25 mm. Thefinished coating shall be wire brushed to removeany excess metal spray.
Hot patch soldering is an alternative at the plantbut is seldomly used, as the method needs to beconducted while the product is still hot beforequenching.
Site Repairs
Zinc metal spray as set out above.
The recommended alternative is to use a zinc richpaint provided it has at leas 90 % zinc in the dryfilm, by mass. The paint should be a zinc richepoxy in conformance with SANS 926. A singlepack zinc rich paint such as Plascon’s “PlascozincPolygalv Primer” or equal can be applied.
5. LIST OF SPECIFICATIONS AND CODES
STRUCTURES
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Structural SteelworkBill No. 8SECTION 2 - GAS STORE 1Section No. 2
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Standard Specification British Standardsfor Civil Engineering EquivalentsConstuction
SANS 1200H: Structural BS 4, BS 449, BS 5531,
steel DD ENV 1993
SANS 1200HC: Corrosion BS 5493 protection of structural steel
AWS D1.1: Welding of steel BS 709, BS 4360, and procedures BS 5135
SANS 912 : Calcium plumbate BS 3698 primer
SANS 630: Decorative high BS 6150, BS 6952 gloss enamel paint for interior and exterior use
SANS 684: Structural steel BS 5493 paint
SANS 10243: The design, BS 5268manufacturer and erection of timber trusses
SANS 10160: The general BS 6399procedures and loadingsto be adopted for the design of buildings
SANS 121: Hot dipped galvanised BS 729, BS 1706coatings on fabricated iron and steel articles -Specifications and testmethods
SANS 10400: The application DD ENV 1992-1-1of the National BuildingRegulations
SANS 10155: Permissible BS 5964accuracy in building
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Structural SteelworkBill No. 8SECTION 2 - GAS STORE 1Section No. 2
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STEEL COLUMNS AND BEAMS
3.20tIPE180 beams1
Welded beams in single lengths with flat section bearer and connection plates bolted to concrete
208NoM12 chemical expansion bolt2
Bolts to columns, beams, etc
PURLINS, GIRTS, BRACING, ETC
1.33tLipped channel section purlins3
Purlins and girts bolted to steel
SUNDRIES
360,000.00Item
Allow the amount of R360,000.00 (Three Hundred and Sixty Thousand Rand) for additional pipe bridges to later detail
4
Budgetary allowance
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Structural Steelwork
Section No. 2
Bill No. 8
AmountPageNo
SECTION 2 - GAS STORE 1
COLLECTION
Science Campus Gas Installation
UNISA
B2051 REV 1
84
83
82
81
80
79
78
77
76
75
74
73
72Total Brought Forward from Page No.
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Structural SteelworkBill No. 8SECTION 2 - GAS STORE 1Section No. 2
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AmountItemNo
Quantity Rate
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BILL 9
PLASTERING
For preambles refer to "Model Preambles for Trades"
PREAMBLES
Note: Galvanised chicken wire to be deemed to be allowed for to reinforcing plaster over chase work, etc. in brick walls
NOTE
SCREEDS
46m2Average 85mm thick on concrete roofs to falls1
Screeds on concrete
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PlasteringBill No. 9SECTION 2 - GAS STORE 1Section No. 2
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AmountItemNo
Quantity Rate
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BILL 10
PLUMBING AND DRAINAGE
For preambles refer to "Model Preambles for Trades"
PREAMBLES
Tenderers are advised to also study the "Specific Notes on installation and materials to be used on LPHC" at the back of these Bills of Quantities. All specific requirements stipulated in this document should be strictly adhered to.
It is a strict condition that the plumbing contractor should also be a registered "Gerberit" installer and proof of required certification will have to be submitted
FULLBORES AND SPOUTS
1No
Product code 3540 fullbore outlet including 4150mm PVC pipe built into concrete wall including bends/fittings etc
1
"Saint Gobain"
1No
Product code 3540 fullbore outlet including 6280mm PVC pipe built into concrete wall including bends/fittings etc
2
2No50mm Diameter pipe 400mm long cast into concrete3
PVC pipe
FIRE APPLIANCES ETC
4No
260 x 580mm Diameter Fire Hose Reel with a 30m / 19mm diameter Hose Reel set at 750mm above ground. Complete with 30m rubber hose, chromium plated stop cork shut offnozzle and wall bracket.
4
Fire hose reels
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Plumbing and Drainage (Provisional)Bill No. 10SECTION 2 - GAS STORE 1Section No. 2
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B2051 REV 1
12No
4.5kg DCP dry powder chemical fire extinguisher with hook made of 120x20x2mm mild steel strip bent to form hook for extinguisher screwed twice to 520x100x22 hardwood. Hardwood screwed and plugged with 6 screws and plugs.
5
Fire extinguishers
EQUIPMENT
Addressable control modules for control of the Gas Detection and Solinoid Monitoring of the flow switches as specified. The control modules shall be mounted in a surface mounted panel with door and catch. as specified under clause 2.5.17 of the standard specification. Relays to be mounted at foyer mimic panel.
Input/Output Relays
4NoSupply6
4NoInstall7
Fire retardant cable (PH30) installed in conduit (measured elsewhere) for field wiring to detectors and other devices as specified under clause 3.2 of the standard specification, including terminations. Cable shall be 1,5 sq mm. 30min Resistant
Cabling and Terminations
20NoSupply8
20NoInstall9
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Plumbing and Drainage (Provisional)Bill No. 10SECTION 2 - GAS STORE 1Section No. 2
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Plumbing and Drainage (Provisional)
Section No. 2
Bill No. 10
AmountPageNo
SECTION 2 - GAS STORE 1
COLLECTION
Science Campus Gas Installation
UNISA
B2051 REV 1
88
87Total Brought Forward from Page No.
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Plumbing and Drainage (Provisional)Bill No. 10SECTION 2 - GAS STORE 1Section No. 2
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AmountItemNo
Quantity Rate
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BILL 11
PAINTWORK
For preambles refer to "Model Preambles for Trades"
PREAMBLES
SUPPLEMENTARY PREAMBLES
Description of paintwork shall be deemed to include for the preparation of surfaces, including filling, stopping, sanding, priming, of nail heads and screws and for all cutting in
Descriptions
All painting shall be done in accordance with "PLASCON" specifications and rates must include for all primers undercoats and final coats. A representative from "Plascon" will be expected to inspect/test work in progress
Paint specification
PAINTWORK ETC TO NEW WORK
ON METAL
25m2On doors1
One coat "Plascon Merit Metal Primer" and two coats "Plascon Velvaglo Satin" emulsion paint to specification
11m2On door frames 2
ON STRUCTURAL STEELWORK
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PaintworkBill No. 11SECTION 2 - GAS STORE 1Section No. 2
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312m2On columns, beams, etc 3
Remove all harmful deposits on surface of steel such as oil, grease, chemical deposits, clay, bitumen or mud, brush steel with rotary wire brush to SIS 05 59 00, apply one coat (40 micron ±5 micron) sinc chromate primer in accordance with SABS 679, one coat (40 micron minimum) multi purpose unercoat in accordance with SABS 681 (type II paint) and two coats "Plascon" alkyd enamel paint (40 micron) in accordance with SABS 630 (type I paint)
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PaintworkBill No. 11SECTION 2 - GAS STORE 1Section No. 2
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Paintwork
Section No. 2
Bill No. 11
AmountPageNo
SECTION 2 - GAS STORE 1
COLLECTION
Science Campus Gas Installation
UNISA
B2051 REV 1
91
90Total Brought Forward from Page No.
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PaintworkBill No. 11SECTION 2 - GAS STORE 1Section No. 2
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AmountItemNo
Quantity Rate
Science Campus Gas Installation
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B2051 REV 1
BILL 12
EARTHWORKS (PROVISIONAL)
SUPPLEMENTARY PREAMBLES
Use "assumed to be" if no trial holes, soils investigations, etc have been carried out - discuss with engineer. Use "Trial holes indicate that" where the ground has been investigated by means of trial holes
Nature of ground
A soils investigation has been carried out on site by the engineer and the report is annexed to these bills of quantities. Descriptions of excavations shall be deemed to include all ground conditions classifiable as "earth" described in the above report and where conditions of a more difficult character are indicated these are separately measured
Nature of ground
Descriptions of carting away of excavated material shall be deemed to include loading excavated material onto trucks directly from the excavations or, alternatively, from stock piles situated on the building site
Carting away of excavated material
DEMOLITIONS ETC
ItemBreak up/down and removing existing water feature1
Taking down and removing
150m2100mm Thick concrete surface beds, paving, etc2
Breaking up and removing
300m280mm Thick brick paving with mortar joints3
73m150 x 300mm Concrete kerbs4
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External Works (Provisional)Bill No. 12SECTION 2 - GAS STORE 1Section No. 2
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BULK EXCAVATION, FILLING, ETC
38m3Fill to inside of demolished water feature5
Earth filling (Type G8) supplied by the contractor compacted to 93% Mod AASHTO density
25m3Fill to inside of demolished water feature6
Earth filling (Type G6) supplied by the contractor compacted to 95% Mod AASHTO density
84m2
Compaction of ground surface for roads and platforms including scarifying for a depth of 150mm, breaking down oversize material and compacting to 93% Mod AASHTO density at optimum moisture content
7
Compaction of surfaces
15No"Natural California Bearing Ratio" test8
Prescribed density tests on filling
60mm Provide the PC amount of R1500.00/1000 delivered to site for road stone including 20mm thick sand bed in patchwork
84m2Paving to road and parking areas to falls9
Paving is to be laid on and including 20mm (thickness after final compaction) clean river sand (preparation of ground or filling elsewhere)
CONCRETE, FORMWORK & REINFORCEMENT
54m
300 x 200mm Edge beam of 30 MPa/19mm concrete including formwork to sides and 12mm softboard expansion joint between concrete and paving
10
Edge beam
PAVING
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External Works (Provisional)Bill No. 12SECTION 2 - GAS STORE 1Section No. 2
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54m2
Compaction of ground surface for roads and platforms including scarifying for a depth of 150mm, breaking down oversize material, adding suitable material where necessary and compacting to 93% Mod AASHTO density at optimum moisture content
11
Compaction of surfaces
8m3
150mm Thick imported G5 layers stabilized with cement (min C4 material to TRH 14) and compacted to 97% Mod AASHTO density (prior to stabilising the contractor must confirm the UCS with 3% and 4% cement)
12
Selected fill material supplied by the contractor
54m2Under road and parking areas, paving etc13
Approved weedkiller
TESTS, ETC.
5No"Modified AASHTO Density" test 14
Prescribed density tests on filling (additional tests as instructed by the Engineer)
3Sets"Field Density" test, including "Optimum Moisture Content" (four readings per test)
15
60mm "Concor Double Zig Zag" interlocking road stone including 20mm thick sand bed
54m2Paving to road and parking areas to falls16
Paving is to be laid on and including 20mm (thickness after final compaction) clean river sand (preparation of ground or filling elsewhere)
KERBS, ROAD MARKINGS, ETC
54m
Kerb (SABS 927 fig 7) 180 x 280mm highwith 225 x 225mm unreinforced concrete haunching at back of each joint including excavation, backfilling, 20mm sand bed, 10mm flexcell joint at 5m centres, etc
17
Precast concrete finished smooth on exposed surfaces including bedding, jointing and pointing
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External Works (Provisional)Bill No. 12SECTION 2 - GAS STORE 1Section No. 2
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85,000.00ItemAllow the amount of R85 000,00 (Eighty Five Thousand Rand) for landscaping
18
LANDSCAPING
ItemProfit19
ItemAttendance20
SLEEVES
6m500 x 500mm Unreinforced concrete encasing to horizontal sleeves
21
Sundries
25,000.00ItemAllow the amount of R25,000.00 (Twenty Five Thousand Rand) for extending existing manhole.
22
Budgetary Allowances
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External Works (Provisional)Bill No. 12SECTION 2 - GAS STORE 1Section No. 2
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External Works (Provisional)
Section No. 2
Bill No. 12
AmountPageNo
SECTION 2 - GAS STORE 1
COLLECTION
Science Campus Gas Installation
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B2051 REV 1
96
95
94
93Total Brought Forward from Page No.
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SECTION 2 - GAS STORE 1
SECTION SUMMARY - SECTION 2 - GAS STORE 1
BillNo
PageNo
Amount
Section No. 2
47Earthworks (Provisional)1
58Concrete Formwork & Reinforcement2
61Masonry3
64Waterproofing4
67Roof Coverings etc5
68Ironmongery6
71Metalwork7
85Structural Steelwork8
86Plastering9
89Plumbing and Drainage (Provisional)10
92Paintwork11
97External Works (Provisional)12
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BILL 1
EARTHWORKS (PROVISIONAL)
SUPPLEMENTARY PREAMBLES
Use "assumed to be" if no trial holes, soils investigations, etc have been carried out - discuss with engineer. Use "Trial holes indicate that" where the ground has been investigated by means of trial holes
Nature of ground
"Hard rock” shall mean granite, quartzitic sandstone or other rock of similar hardness, the removal of which requires drilling, wedging and splitting or the use of explosives.
“Soft rock” shall mean hard material the removal of which warrants the use of pneumatic tools and includes hard shale, ferricite, compact ouklip and material of similar hardness.
“Earth” shall mean all ground other than that classified as “hard rock” or “soft rock” and shall include madeup ground and any loose stones or pieces of concrete not exceeding 0,03 m3 in volume.
Descriptions of carting away of excavated material shall be deemed to include loading excavated material onto trucks directly from the excavations or, alternatively, from stock piles situated on the building site
Carting away of excavated material
EXCAVATION, FILLING, ETC OTHER THAN BULK
7m3Ground beams 1
Excavation in earth not exceeding 2m deep
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Earthworks (Provisional)Bill No. 1SECTION 3 - GAS STORE 2Section No. 3
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0.4m3Soft rock2
Extra over trench and hole excavations in earth for excavation in
0.2m3Hard rock3
7m3Surplus material from excavations and/or stock piles on site to a dumping site to be located by the contractor
4
Extra over all excavations for carting away
36m2Sides of trench and hole excavations exceeding 1,5m deep
5
Risk of collapse of excavations
ItemKeeping excavations free of all water other than subterranean water
6
Keeping excavations free of water
20m3Under floors, steps, pavings, etc7
Earth filling (Type G6) supplied by the contractor compacted to 95% Mod AASHTO density
10No"Modified AASHTO Density" test8
Prescribed density tests on filling
SOIL POISONING
65m2
Under floors etc including forming and poisoning shallow furrows against foundation walls etc, filling in furrows and ramming
9
Soil insecticide
50m2To bottoms and sides of trenches etc10
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Earthworks (Provisional)Bill No. 1SECTION 3 - GAS STORE 2Section No. 3
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Earthworks (Provisional)
Section No. 3
Bill No. 1
AmountPageNo
SECTION 3 - GAS STORE 2
COLLECTION
Science Campus Gas Installation
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100
99Total Brought Forward from Page No.
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Earthworks (Provisional)Bill No. 1SECTION 3 - GAS STORE 2Section No. 3
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BILL 2
CONCRETE, FORMWORK AND REINFORCEMENT
For preambles refer to "Model Preambles for Trades"
PREAMBLES
SUPPLEMENTARY PREAMBLES
The costs of making, storing and testing of concrete test cubes as required under clause 7 "Tests" of SANS 1200 G shall include the cost of providing cube moulds necessary for the purpose for testing costs and for submitting reports on the test to the Principal Agent. The testing shall be undertaken by an independent firm or institution nominated by the contractor to the approval of the Principal Agent. (Test cubes are measured separately)
Cost of tests
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Concrete Formwork & ReinforcementBill No. 2SECTION 3 - GAS STORE 2Section No. 3
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Descriptions of formwork shall be deemed to include use and waste only (except where described as "left in" or "permanent"), for fitting together in the required forms, wedging, plumbing and fixing to true angles and surfaces as necessary to ensure easy release during stripping and for reconditioning as necessary before re-use
The vertical strutting shall be carried down to such construction as is sufficiently strong to afford the required support without damage and shall remain in position until the newly constructed work is able to support itself
Formwork to soffits of solid slabs, etc shall be deemed to be to slabs not exceeding 250mm thick unless otherwise described
Formwork to soffits of slabs, beams, etc shall be deemed to be propped up exceeding 1,50m and not exceeding 3,50m high unless otherwise described
Formwork to sides of bases, pile caps, ground beams, etc will only be measured where it is prescribed by the engineer for design reasons
Formwork
Formwork necessitated by irregularity or collapse of excavated faces will not be measured and the cost thereof shall be deemed to be included in the allowance for taking the risk of collapse of the sides of the excavations, provision for which is made in "Earthworks"
The vertical strutting shall be carried down to such construction as is sufficiently strong to afford the required support without damage and shall remain in position until the newly constructed work is able to support itself.
Formworks to soffits of solid etc shall be deemed to be slabs not exceeding 250mm thick unless otherwise described
Formwork necessitated by irregularity or collapse of excavated faces will not be measured and the cost thereof shall be deemed to be included in the allowance for taking the risk of collapse of the sides of the excavations, provision for which is made in "Earthworks"
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Concrete Formwork & ReinforcementBill No. 2SECTION 3 - GAS STORE 2Section No. 3
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SPECIFICATION FOR SOILCRETE
Soilcrete shall consist of an approved soil or gravel
mixed with 10 % by mass of Portland Cement and only
sufficient water to give it a consistency that will permit
the soilcrete to be placed, using vibrators. The material
used for soilcrete shall be sandy granular material of the
following specifications:
s Minimum Grading Modulus: 1,2
s Maximum Plasticity Index: 10 %
s Maximum particle size: 38 mm
s Detrimental percentages of silt and clay shall be
avoided.
The soilcrete shall be mixed on site using suitable
concrete mixers and the water and cement contents
shall be carefully controlled. It shall be placed and
thoroughly compacted by means of concrete vibrators
so that all voids are filled.
SPECIFICATION FOR PLAIN AND REINFORCED
CONCRETE
The Standardized Specification for Civil Engineering
Construction of the South African Bureau of Standards
shall apply throughout in respect of this contract, in
addition to the additions and saving the exceptions set
out below:
A copy of the said specification shall be furnished by the
contractor and shall be kept on the site.
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PROJECT SPECIFICATION
1. Applicable standardized and particular
specifications
For the purposes of this contract the following
standardized and particular specification shall
apply
SANS 1200 G: CONCRETE (STRUCTURAL)
FINISHING WITH MECHANICAL TROWEL
Power floating should not commence until
such time as the concrete surface has lost its
sheen and barely shows footprints.
All laitance on the surface of the fresh
concrete screed resulting from the compaction
of concrete must be struck off prior to
mechanical trowelling.
Over trowelling, causing an excessive cement-
water paste to come to the surface, must be
strictly avoided.
CURING
Curing should commence as soon as finishing
operations have been completed and should
be continued for at least 7 days. The method
of curing must be approved by the engineer.
JOINTS
The joints should be formed by cutting grooves
3 mm wide by 25 mm deep into the screed.
These joints must be aligned to the joints in
the structural slabs or the slabs on fill, and
must be cut within 8 hours of placing the
screed.
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All smooth formwork must be cleaned, all unevenesses removed and properly prepared to be finished (finish elsewhere)
SMOOTH FORMWORK
UNREINFORCED CONCRETE
1m3Surface blinding under strip footings1
10MPa/19mm concrete
REINFORCED CONCRETE CAST AGAINST EXCAVATED SURFACES
7m3Ground beams 2
30MPa/19mm concrete
17m3Surface beds 3
6m3Fill to existing channels 4
REINFORCED CONCRETE
7m3Ramps laid to falls5
25MPa/19mm concrete
10m3Steps, etc6
27NoMaking and testing 150 x 150 x 150mm concrete strength test cube
7
TEST BLOCKS
CONCRETE SUNDRIES
65m2Surface beds8
Finishing top surfaces of concrete with a broom finish
26m2Ramps laid to falls9
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5NoBedding approximately 50mm thick under 200 x 200mm base plate including chamfered edges all round
10
25 MPa non-shrink grout
ROUGH FORMWORK (DEGREE OF ACCURACY III)
35mEdges, risers, ends and reveals not exceeding 300mm high or wide
11
Rough formwork to sides
9mEdges, risers, ends and reveals not exceeding 300mm high or wide above concrete
12
3mSloping and stepped outer edges of stairs 1360mm high extreme
13
MOVEMENT JOINTS ETC
104mNot exceeding 300mm wide14
Two layers Malthoid slip joints between horizontal concrete and brick surfaces including cement mortar bed
104m10mm Joints not exceeding 300mm high15
Expansion joints with 10mm softboard between vertical concrete and brick surfaces
REINFORCEMENT
0.068t12mm Diameter bars16
Mild steel reinforcement to structural concrete work
0.068t10mm Diameter bars17
0.068t8mm Diameter bars18
0.307t32mm Diameter bars19
High tensile steel reinforcement to structural concrete work
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0.307t25mm Diameter bars20
0.307t20mm Diameter bars21
0.307t16mm Diameter bars22
0.307t12mm Diameter bars23
0.307t10mm Diameter bars24
65m2Type Ref 193 fabric reinforcement in concrete surface beds, slabs, etc
25
Fabric reinforcement
165No
12mm Diameter dowel bar 250mm long with one end embedded 150mm deep in side of concrete and other end greased and wrapped in polythene sheeting including hole 300mm deep into existing concrete including scabble of existing concrete to expose aggregate and clean and apply wet to dry epoxy ABE 344 or similar approved
26
Sundries
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Concrete Formwork & Reinforcement
Section No. 3
Bill No. 2
AmountPageNo
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COLLECTION
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108
107
106
105
104
103
102Total Brought Forward from Page No.
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BILL 3
MASONRY
For preambles refer to "Model Preambles for Trades"
PREAMBLES
SUPPLEMENTARY PREAMBLES
BRICKWORK
Where sizes in descriptions are given in brick units, "one brick" shall represent the length and "half brick" the width of a brick
Sizes in descriptions
Descriptions of hollow walls are deemed to include for leaving every fifth perpend of the bottom course of the external skin open as a weep hole
Hollow walls etc
Descriptions of solid walls (except if built in English bond) and cavity walls shall be deemed to include hot-dipped galvanised wall ties complying with SABS 28 and of the butterfly or of the modified PWD type, of the required length with each end built at least 75mm deep into brickwork, spaced at not more than 1m centres alternatively to every third course of brickwork
Wall ties
Descriptions of recessed pointing to fair face brickwork and face brickwork shall be deemed to include square recessed, hollow recessed, weathered pointing, etc
Pointing
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Samples of all masonry building units, except those for walls described as "load bearing", shall consist of a minimum of 6 units. Samples of building units to be used in walls described as "load bearing" shall consist of30 units from every 30 000 units delivered to site
Samples
SUPERSTRUCTURE
Non-bearing brickwork
342m2One brick walls1
Brickwork in NFP bricks (7MPa nominal compressive strength) in class II mortar with all joints grouted in solid with liquid cement mortar
23m2One brick walls on top of existing brick walls2
BRICKWORK SUNDRIES
688m75mm Wide reinforcement built in horizontally3
Brickwork reinforcement
1,073m150mm Wide reinforcement built in horizontally4
FACE BRICKWORK
730m2Extra over brickwork for face brickwork5
Approved external face bricks (FBX) with a PC Amount of R5 000.00 per thousand bricks delivered to site (excluding VAT) recessed pointed horizontal and vertical joints with cement mortar to match colour of face bricks
2mExtra over brickwork for brick-on-edge cut soldier courselintel pointed on face and 115mm soffit
6
124mCoping on top of one brick wall7
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Masonry
Section No. 3
Bill No. 3
AmountPageNo
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COLLECTION
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110Total Brought Forward from Page No.
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BILL 4
WATERPROOFING
For preambles refer to "Model Preambles for Trades"
PREAMBLES
SUPPLEMENTARY PREAMBLES
Waterproofing of roofs, basements, etc shall be laid under a ten year guarantee. Waterproofing to roofs shall be laid to even falls to outlets etc with necessary ridges, hips and valleys. Descriptions of sheet or membrane waterproofing shall be deemed to include additional labour to turn-ups and turn-downs
Waterproofing
DAMPPROOFING OF WALLS AND FLOORS
15m2In walls1
One layer of 375 micron "Consol Plastics Brikgrip DPC" embossed damp proof course
65m2Under surface beds2
One layer of 250 micron "Consol Plastics Gunplas USB Green" waterproof sheeting sealed at laps with "Gunplas Pressure Sensitive Tape"
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BILL 5
ROOF COVERINGS ETC
For preambles refer to "Model Preambles for Trades"
PREAMBLES
SUPPLEMENTARY PREAMBLES
Descriptions of all roof coverings are deemed to include for all straight cutting
Straight cutting
The roof covering and cladding is to be carried out strictly in accordance with the manufacturer's instruction. On completion the roof covering and accessories are to be inspected by the Manufacturer who is to provide a 5 year guarantee against defective materials and faulty workmanship
The roof is to be guaranteed weather tight for a period of 5 years period, calculated from the handed over date of the completed project
Guarantee
PROFILED METAL SHEETING AND ACCESSORIES
189m2Roof covering with pitch not exceeding 25 degrees1
0,58mm "Brownbuilt Klip-lok 700" Z275 spelter embossed galvanised troughed sheet steel with "Global duro-coat" finish to one side in single lengths fixed to steel purlins or rails (purlins and rails elsewhere) and including 0,8mm embossed galvanised sheet steel accessories with "Global duro-coat" finish to one side
19mFK79 Sidewall flashing 408mm girth twice times bent and notched on site to suit roof profile
2
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18mFK78 Headwalll flashing 375mm girth twice times bent and notched on site to suit roof profile
3
38mSerrated closers to ridges, hips, valleys, headwalls, etc4
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Roof Coverings
Section No. 3
Bill No. 5
AmountPageNo
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COLLECTION
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115
114Total Brought Forward from Page No.
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BILL 6
METALWORK
For preambles refer to "Model Preambles for Trades"
PREAMBLES
SUPPLEMENTARY PREAMBLES
Descriptions of bolts shall be deemed to include nuts and washers
Descriptions of expansion anchors and bolts and chemical anchors and bolts shall be deemed to include nuts, washers and mortices in brickwork or concrete
Metalwork described as "holed for bolt(s)" shall be deemed to exclude the bolts unless otherwise described
Descriptions
SUNDRIES
97,000.00ItemAllow the amount of R97,000.00 (Ninety Seven Thousand Rand) for steel fencing.
1
Budgetary allowance
17,000.00ItemAllow the amount of R17,000.00 (Seventeen Thousand Rand) for gates.
2
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BILL 7
STRUCTURAL STEELWORK
For preambles refer to "Model Preambles for Trades"
PREAMBLES
SUPPLEMENTARY PREAMBLES
Descriptions of bolts shall be deemed to include nuts and washers
Descriptions
Descriptions of L-shaped and U-shaped anchor bolts shall be deemed to include bending, threading, nuts and washers and embedding in concrete
Descriptions of expansion anchors and bolts and chemical anchors and bolts shall be deemed to include nuts, washers and mortices in brickwork or concrete
Descriptions of L-shaped and U-shaped anchor bolts shall be deemed to include bending, threading, nuts and washers and embedding in concrete. Where anchor bolts are described as embedded in sides or soffits of concrete it shall be deemed to include holes through formwork.
Descriptions of expansion anchors and bolts and chemical anchors and bolts shall be deemed to include nuts, washers and mortices in brickwork or concrete.
SPECIFICATION FOR STRUCTURAL STEELWORK
The Standardized Specification for Civil Engineering Construction of the South African Bureau of Standards shall apply throughout in respect of this contract in addition to the additions and saving the exceptions set out below.
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EQUIVALENCY OF STANDARDS
Wherever reference is made in the Contract to SANSstandards and/or code requirements to be met by thegoods and materials to be furnished, work performed ortested, the provisions of the latest edition or revision ofthe relevant SANS standards and codes in effect shallapply, unless otherwise stated in the Contract.Whenever reference is made to SANS standards andcodes, other authoritative standards and codes thatensure an equal or higher quality than the relevantSANS standards and codes, will be accepted subject tothe Project Engineer’s prior review and written consent.Differences between the standards specified and theproposed alternative standards shall be fully describedin writing by the Tenderer/Contractor and submitted tothe Project Engineer at least twenty eight days prior tothe date when the Contractor/Tenderer desires theProject Engineer’s consent. In the event that the ProjectEngineer determines that such deviations are not of ahigh enough or better standard, the Tenderer/Contractorshall comply with the specified document.
A copy of the said specification shall be furnished by theContractor and shall be kept on the site.
A list of British specifications which are deemed to beequivalent to the relevant SANS specifications are listedat the end of this specification.
PROJECT SPECIFICATION
Should a requirement of the said standardizedspecification be inconsistent with a requirement of theproject specification, the latter shall take precedence.
1. APPLICABLE SPECIFICATIONS
SANS 1200 H: STRUCTURAL STEELWORKSANS 1200 HC: CORROSION PROTECTION
OF STRUCTURAL STEELWORK
THE SUBCLAUSES OF SANS 1200 H ARE AMENDED AS FOLLOWS
2.1 Subclause 3: Structural steel
The steel shall be Grade 350W for hot rolled steel sections (I, H, C, L). All other
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rolled steel sections (I, H, C, L). All other members shall carry the Grade 300W steel symbol to identify steel grade prior to manufacturing.
The thickness specified of a checker (“vastrap”) floor plate, is the under-pattern thickness.
2.2 Subclause 5.1 and subsubclause 5.1.2: Contractor provides shop details
The contractor shall furnish the engineer with shop-detail drawings within two weeks of having received the design drawings. Workshop drawings shall be drawn in Stru-Cad. The engineer will check the drawings for conformity with design requirements andwill return the drawings with additions and corrections, if any, within one week of having received them. Detailed checking of shop details for dimensional accuracy and installation fit, will not be done by the engineer.
2.3 Subsubclause 5.2.3: Cutting
The edges of flame-cut plates shall be ground smooth.
2.4 Subsubclause 5.6.1: Grouting responsibility
Grouting shall be done by the Main contractor.
2.5 Subsubclause 5.3.4: Welding
2.5.1 The applicable welding code for (a) All welders shall be coded
welders. (b)(d) The Engineer may at his
discretion identify welds for non-destructive
(e) No staggered or intermittent welding is permitted.
(f) No welding on site is permitted unless approved by the engineer. Any site welder and site welding procedure will
(h) The Contractor shall submit for
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review an outline of the Quality Control
2.5.2 Weld testing
2.5.2.1 General
a. Personnel
performing non-
destructive testing
other than visual
shall be qualified
in accordance
with the
stipulations of the
code.
b. Full penetration
butt welds are to
be radio
graphically tested
in accordance
with (2.5.2.2)
below). A
minimum of 50%
of full penetration
welds shall be
tested. If more
than 5% of the
examined welds
show
unsatisfactory
results, then
additional
examinations
covering all welds
shall be
performed.
2.5.2.2 Non-destructive examination
a. Non-destructive
procedures,
techniques and
acceptance
criteria shall be as
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required by AWS
D1.1.
b. All non-
destructive
examination shall
be in accordance
with written
procedures. The
Engineer shall
have the right to
examine and
approve the
written
procedures.
c. Full penetration
but welds shall be
radio graphically
tested or
ultrasonically
tested to the
requirements of
AWS D1.1.
d. Ultrasonic and
radiographic
examinations
shall not be made
within the period
of 24 hours after
completion of
welding.
e. Cost of
examination
listed under
to be borne
by the
Contractor.
f. All costs (time,
travelling, tests)
incurred by non-
destructive
examinations due
to non-
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conformance of
specifications and
due to any latent
defects in material
and welding shall
be borne by the
Contractor.
g. Fillet welds will be
inspected and
tested to AWS
D1.1 at the
discretion of the
Engineer.
h. Certificates of
non-destructive
testing shall be
submitted to the
Engineer.
Subsubclause 8.3.6: Measurement of andpayment for protective coating
Surface preparation, priming, shop and sitepainting shall be measured in m² of surfacetreated.
2.7 Subclause 7.1: Test certificates
Test certificates pertaining to the steel to beused shall be submitted to the engineer bythe contractor before fabricationcommences.
The engineer reserves the right to inspectall structural steel in the workshop before itis delivered to the site.
2.8 Subsubclause 6.2.2: Other tolerances
Degree of accuracy II shall apply unlessindicated otherwise elsewhere.
ADDITIONAL CLAUSES
3.1 Protective treatment and painting
3.1.1 General
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3.1.1.1 All paint shall be delivered at the workshop as well as on the site in the original containers that display the manufacturer’s name and trademark as well as the SABS mark. The engineer may, at his discretion, prescribe the manufacturer and the type of paint.
The coating system shall be from one manufacturer only. The paint manufacturer’s instructions shall be strictly adhered to.
3.1.1.2 Surfaces in contact with each other after assembly or erection shall receive the primer beforehand, except for faying surfaces for friction-grip fasteners.
3.1.1.3 The application of the final coats of paint before erection will be permitted by the engineer only in special circumstances or where specified elsewhere.
3.1.1.4 After erection of the steelwork, the specified paint system shall be reinstated in all areas where it has been damaged. All fasteners shall also be treated in accordance with the specified paint system.
3.1.1.5 No painting on the site shall be done in inclement weather or when humidity or frost is
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liable to cause wet or damp conditions on the surface to be painted.
3.1.1.6 No painting shall be done
if the temperature fallsbelow 7° C.
3.1.1.7 Welded seams shall be thoroughly steel-brushed before painting. Permission shall be obtained from the engineer before slag residue may be neutralized with acids or alkalis.
3.1.2 Surface preparation in the workshop
SIS 05 59 00 or ISO 8501 shall apply and shall be referred to in respect of this clause.
3.1.2.1 Manual scraping and wire brushing. This treatment shall normally be applied in all circumstances except if and where blast cleaning is specified.
- Prior to treatment, the steel surface shall be cleaned of dirt and grease
- Heavier layers of rust shall be removed by chipping
- All loose mill scale, rust and foreign matter shall be removed by very thorough scraping, wire-brushing, machine-brushing, grinding, etc
- Finally the surface
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shall be cleaned by vacuum cleaner, with clean dry compressed air, or with a clean brush
- The surface shall have a pronounced metallic sheen with an appearance equal to or better than that shown on the prints designated ST 3 in SIS 05 59 00 or ISO 8501
3.1.2.2 Blast-cleaning
This treatment may be used but is not obligatory unless so specified hereinafter. If blast cleaning is preferred to normal scraping and wire brushing, the final surface shall be equal to or better than that specified in subsubclause 3.1.2.1.
Paint system
The paint system shall be applied in accordance with the specifications given in table 3.1 below. Application may be by brush, roller or sprayed. Red lead may not be used.
All structural steel which is not visible, eg purlins, rafters and trusses, shall receive only the primer coat. All visible steel shall receive the full appropriate paint system treatment.
In all cases the manufacturer’s specification for any paint product must be followed.
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Paint system for newly galvanized surfaces
3.2.1 Recommended surface preparation:
- Degrease with Plascon Aquasole Degreaser GR 1 or similar approved. Any cement or foreign material must also be removed from the metal surface.
- Rinse with clean running water while protecting the floors and walls.
- Wash with Galvanised Iron Cleaner GIC 1 by Plascon, or similar approved.
- Rinse with clean running water and allow to dry. Protect the floors and walls.
3.2.2 Apply one coat of Plascon Aquafast Etch Primer no EMS 18 or similar approved to a total dry thickness of 35 micron. Must be overcoated within 72 hours to avoid excessive hardening.
3.2.3 One final coat as specified in table 3.1.
HOT DIPPED GALVANIZING (See also subclause 5.9in SANS 1200H)
Steelwork described as "galvanised" shall begalvanised after manufacturing and beforedelivering to site by means of the hot dippedprocess complying with the minimumrequirements of SANS 121 (SABS ISO 1461),1999 latest amendment. Structural steelmembers shall be given an 85 micron thickgalvanised coating or such other thickness asmay be specified in accordance with SANS 121(SABS ISO 1461) (Table 1.)Damaged surfaces must be thoroughly cleanedand if welding has been carried out all slag mustbe removed preferably by the use of a chiselhammer.
Before galvanising all surfaces of the metalworkshall be thoroughly cleaned of all scale and rust
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by shot-blasting in accordance with SANS 10064or by pickling and then fluxed ready forgalvanising.
The zinc coating shall be even and continuousover all surfaces, free of bare spots, dull or roughpatches, blisters or other imperfections. The zinccoating shall show no signs of peeling and shallbe uniform in thickness.
All M8 and greater bolts, nuts, screws and otherthreaded components, shall be hot-dip galvanisedto SANS 121 (SABS ISO 1461) (previouslyarticles type C.)
Repairing of damaged coatings
Plant repairs
Should any black spots or uncoated areas greaterthan 5 mm2 (individual) or 25 mm2 (collective) perm2 or per m run be present after galvanizing, thecoating shall be repaired. This is to be carried outusing abrasive blasting following by zinc metalspray. The zinc metal spray shall be applied atleast 25 % thicker than that specified and shalloverlap the damaged area by 20-25 mm. Thefinished coating shall be wire brushed to removeany excess metal spray.
Hot patch soldering is an alternative at the plantbut is seldomly used, as the method needs to beconducted while the product is still hot beforequenching.
Site Repairs
Zinc metal spray as set out above.
The recommended alternative is to use a zinc richpaint provided it has at leas 90 % zinc in the dryfilm, by mass. The paint should be a zinc richepoxy in conformance with SANS 926. A singlepack zinc rich paint such as Plascon’s “PlascozincPolygalv Primer” or equal can be applied.
5. LIST OF SPECIFICATIONS AND CODES
STRUCTURES
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Standard Specification British Standardsfor Civil Engineering EquivalentsConstuction
SANS 1200H: Structural BS 4, BS 449, BS 5531,
steel DD ENV 1993
SANS 1200HC: Corrosion BS 5493 protection of structural steel
AWS D1.1: Welding of steel BS 709, BS 4360, and procedures BS 5135
SANS 912 : Calcium plumbate BS 3698 primer
SANS 630: Decorative high BS 6150, BS 6952 gloss enamel paint for interior and exterior use
SANS 684: Structural steel BS 5493 paint
SANS 10243: The design, BS 5268manufacturer and erection of timber trusses
SANS 10160: The general BS 6399procedures and loadingsto be adopted for the design of buildings
SANS 121: Hot dipped galvanised BS 729, BS 1706coatings on fabricated iron and steel articles -Specifications and testmethods
SANS 10400: The application DD ENV 1992-1-1of the National BuildingRegulations
SANS 10155: Permissible BS 5964accuracy in building
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STEEL COLUMNS AND BEAMS
0.39t100 x 100mm x 4.0mm Thick SHS columns1
Welded columns in single lengths with flat section base, top, bearer and connection plates bolted to concrete
1.42tIPE160 beams2
Welded beams in single lengths with flat section bearer and connection plates bolted to concrete
0.35tIPE180 beams3
203NoM12 chemical expansion bolt4
Bolts to columns, beams, etc
PURLINS, GIRTS, BRACING, ETC
0.66tLipped channel section purlins5
Purlins and girts bolted to steel
0.43tAngle section bracing6
Welded bracing etc with flat section connection plates bolted to steel
SUNDRIES
0.324t4mm - 12mm Thick x 7.85kg/mm all bolted and welded to steel
7
Welded stiffener-, spacer-, end-, toe-, cap-, extention-, base-, and gusset plates including cleats all bolted to steel (Grade 8.8 bolts elsewhere)
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Structural Steelwork
Section No. 3
Bill No. 7
AmountPageNo
SECTION 3 - GAS STORE 2
COLLECTION
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130
129
128
127
126
125
124
123
122
121
120
119
118Total Brought Forward from Page No.
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BILL 8
PLUMBING AND DRAINAGE
For preambles refer to "Model Preambles for Trades"
PREAMBLES
Tenderers are advised to also study the "Specific Notes on installation and materials to be used on LPHC" at the back of these Bills of Quantities. All specific requirements stipulated in this document should be strictly adhered to.
It is a strict condition that the plumbing contractor should also be a registered "Gerberit" installer and proof of required certification will have to be submitted
RAINWATER DISPOSAL
19m150 x 150mm Eaves gutters with beaded front edge1
0,6mm Sheet iron with Chromadek finish coated internally and externally (colour Fish Eagle White) fixed with purpose made concealed brackets
2NoExtra over 150 x 150mm eaves gutter for stopped end2
4NoExtra over 150 x 150mm eaves gutter for outlet for 75 x 100mm pipe
3
25m75 x 100mm Rainwater pipes4
12NoExtra over 75 x 100mm rainwater pipe for 45 degree bend
5
4NoExtra over 75 x 100mm rainwater pipe for shoe6
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BILL 9
PAINTWORK
For preambles refer to "Model Preambles for Trades"
PREAMBLES
SUPPLEMENTARY PREAMBLES
Description of paintwork shall be deemed to include for the preparation of surfaces, including filling, stopping, sanding, priming, of nail heads and screws and for all cutting in
Descriptions
All painting shall be done in accordance with "PLASCON" specifications and rates must include for all primers undercoats and final coats. A representative from "Plascon" will be expected to inspect/test work in progress
Paint specification
PAINTWORK ETC TO NEW WORK
ON METAL
256m2On fencing 1
One coat "Plascon Merit Metal Primer" and two coats "Plascon Velvaglo Satin" emulsion paint to specification
28m2On gates 2
ON STRUCTURAL STEELWORK
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UNISA
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136m2On columns, beams, etc 3
Remove all harmful deposits on surface of steel such as oil, grease, chemical deposits, clay, bitumen or mud, brush steel with rotary wire brush to SIS 05 59 00, apply one coat (40 micron ±5 micron) sinc chromate primer in accordance with SABS 679, one coat (40 micron minimum) multi purpose unercoat in accordance with SABS 681 (type II paint) and two coats "Plascon" alkyd enamel paint (40 micron) in accordance with SABS 630 (type I paint)
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PaintworkBill No. 9SECTION 3 - GAS STORE 2Section No. 3
Carried to Collection R
Paintwork
Section No. 3
Bill No. 9
AmountPageNo
SECTION 3 - GAS STORE 2
COLLECTION
Science Campus Gas Installation
UNISA
B2051 REV 1
134
133Total Brought Forward from Page No.
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PaintworkBill No. 9SECTION 3 - GAS STORE 2Section No. 3
Carried Forward to Summary of Section No. 3 R
AmountItemNo
Quantity Rate
Science Campus Gas Installation
UNISA
B2051 REV 1
BILL 10
EXTERNAL WORKS (PROVISIONAL)
SUPPLEMENTARY PREAMBLES
The nature of the ground is assumed to be loose sandy material, therefore "earth", but possibly interspersed with "hard rock" or "soft rock"
Nature of ground
Descriptions of carting away of excavated material shall be deemed to include loading excavated material onto trucks directly from the excavations or, alternatively, from stock piles situated on the building site
Carting away of excavated material
DEMOLITIONS, ETC
60mDigging up and removing existing sleeves, etc1
Taking out and removing
4NoDigging up/breaking out and removing existing manholes
2
1No
Digging up/breaking out existing concrete kerb inlet including blanking off existing 450mm diameter concrete stormwater pipe
3
BULK EARTHWORKS
404m3Reduced levels over sloping site4
Excavation in earth not exceeding 2m deep
20m3Soft rock5
Extra over bulk excavation in earth for excavation in
70m3Hard rock6
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External Works (Provisional)Bill No. 10SECTION 3 - GAS STORE 2Section No. 3
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B2051 REV 1
ItemKeeping excavations free of all water other than subterranean water
7
Keeping excavations free of water
404m3Surplus material from excavations and/or stock piles on site to a dumping site located by the contractor
8
Extra over all excavations for carting away
339m2
Compaction of ground surface for roads and platforms including scarifying for a depth of 150mm, breaking down oversize material and to 93% Mod AASHTO density at optimum moisture content
9
Compaction of surfaces
51m3Over site to form platforms10
Earth filling obtained from the excavations and/or prescribed stock piles on site compacted to 93%Mod AASHTO density
STORMWATER DRAINAGE
11m
450mm Pipes laid in and including trenches not exceeding 1m deep (Refer to drawing JRA-SD-SW090 section details 2 and drawing SW091)
11
Class 100D concrete pipes
1NoKerb inlet complete to detail drawing JRA-SD-SW020 to SW023
12
2m3Extra over excavation in earth for pipe trenches, chambers, etc for excavation in soft rock
13
Sundries
3m3Extra over excavation in earth for pipe trenches, chambers, etc for excavation in hard rock
14
1No
Cutting into side of existing inspection chamber for and connecting 450mm pipe including inserting channel junction and making good concrete benching
15
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External Works (Provisional)Bill No. 10SECTION 3 - GAS STORE 2Section No. 3
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B2051 REV 1
5,000.00ItemAllow the amount of R5 000.00 for sewer manhole modification
16
SEWER MANHOLE
ItemProfit and attendance17
DUCTS FOR ELECTRICAL CABLES ETC
150mSet of two 110mm pipes laid in and including trenches not exceeding 1m deep
18
uPVC Heavy duty (SDR34) pipes
4No110mm Slow bend sleeves19
Extra over uPVC pipes for fittings, etc
8No110mm Bend 20
4No110mm Tee21
2NoManhole size 600 x 600mm internally22
Sumps, catchpits, inspection chambers, etc (gratings and covers elsewhere)
2NoHeavy duty cover and frame for manhole 23
Gratings, covers, etc
2m3Extra over excavation in earth for pipe trenches, chambers, etc for excavation in soft rock
24
Sundries
4m3Extra over excavation in earth for pipe trenches, chambers, etc for excavation in hard rock
25
4m3Unreinforced concrete encasing to horizontal pipe26
300mSupply and fit draw wires 27
SUNDRIES
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External Works (Provisional)Bill No. 10SECTION 3 - GAS STORE 2Section No. 3
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B2051 REV 1
20,000.00Item
Allow the amount of R20,000.00 (Twenty Thousand Rand) for external ramps to later detail
28
Budgetary allowance
200,000.00Item
Allow the amount of R200,000.00 (Two Hundred Thousand Rand) for relocation of existing water filtration plant including water piping and trenching
29
10,000.00ItemAllow the amount of R10,000.00 (Ten Thousand Rand) for alterations to existing diesel store.
30
2,000.00ItemAllow the amount of R2,000.00 (Two Thousand Rand) for blanking off stormwater pipes.
31
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External Works (Provisional)
Section No. 3
Bill No. 10
AmountPageNo
SECTION 3 - GAS STORE 2
COLLECTION
Science Campus Gas Installation
UNISA
B2051 REV 1
139
138
137
136Total Brought Forward from Page No.
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External Works (Provisional)Bill No. 10SECTION 3 - GAS STORE 2Section No. 3
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AmountItemNo
Quantity Rate
Science Campus Gas Installation
UNISA
B2051 REV 1
BILL 11
BUILDER'S WORK TO PLINTHS
SUPPLEMENTARY PREAMBLES
The nature of the ground is assumed to be loose sandy material, therefore "earth", but possibly interspersed with "hard rock" or "soft rock"
Nature of ground
Descriptions of carting away of excavated material shall be deemed to include loading excavated material onto trucks directly from the excavations or, alternatively, from stock piles situated on the building site
Carting away of excavated material
THE FOLLOWING IN PLINTHS
16m3Ground beams 1
Excavation in earth not exceeding 2m deep
1m3Soft rock2
Extra over trench and hole excavations in earth for excavation in
0.5m3Hard rock3
16m3Surplus material from excavations and/or stock piles on site to a dumping site to be located by the contractor
4
Extra over all excavations for carting away
79m2Sides of trench and hole excavations exceeding 1,5m deep
5
Risk of collapse of excavations
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Builder's Work to PlinthsBill No. 11SECTION 3 - GAS STORE 2Section No. 3
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B2051 REV 1
ItemKeeping excavations free of all water other than subterranean water
6
Keeping excavations free of water
36m3Under floors, steps, pavings, etc7
Earth filling (Type G6) supplied by the contractor compacted to 95% Mod AASHTO density
119m2
Compaction of ground surface under floors etc including scarifying for a depth of 150mm, breaking down oversize material, adding suitable material where necessary and compacting to 93% Mod AASHTO density
8
Compaction of surfaces
119m2
Under floors etc including forming and poisoning shallow furrows against foundation walls etc, filling in furrows and ramming
9
Soil insecticide
110m2To bottoms and sides of trenches etc10
2m3Surface blinding under strip footings11
10MPa/19mm concrete
16m3Ground beams 12
30MPa/19mm concrete
31m3Surface beds 13
119m2Surface beds14
Finishing top surfaces of concrete with a broom finish
57mEdges, risers, ends and reveals not exceeding 300mm high or wide
15
Rough formwork to sides
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Builder's Work to PlinthsBill No. 11SECTION 3 - GAS STORE 2Section No. 3
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B2051 REV 1
54m300 x 360mm Deep channel 16
Boxing in rough formwork to form
3.692tBars of various diameters17
Steel reinforcement to structural concrete work
119m2Under surface beds18
One layer of 250 micron "Consol Plastics Gunplas USB Green" waterproof sheeting sealed at laps with "Gunplas Pressure Sensitive Tape"
90,000.00ItemAllow the amount of R90,000.00 (Ninety Thousand Rand) for fencing including gates.
19
Budgetary Allowances
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Builder's Work to PlinthsBill No. 11SECTION 3 - GAS STORE 2Section No. 3
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Builder's Work to Plinths
Section No. 3
Bill No. 11
AmountPageNo
SECTION 3 - GAS STORE 2
COLLECTION
Science Campus Gas Installation
UNISA
B2051 REV 1
143
142
141Total Brought Forward from Page No.
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Builder's Work to PlinthsBill No. 11SECTION 3 - GAS STORE 2Section No. 3
Carried Forward to Summary of Section No. 3 R
Science Campus Gas Installation
UNISA
B2051 REV 1
SECTION 3 - GAS STORE 2
SECTION SUMMARY - SECTION 3 - GAS STORE 2
BillNo
PageNo
Amount
Section No. 3
101Earthworks (Provisional)1
109Concrete Formwork & Reinforcement2
112Masonry3
113Waterproofing4
116Roof Coverings5
117Metalwork6
131Structural Steelwork7
132Plumbing and Drainage8
135Paintwork9
140External Works (Provisional)10
144Builder's Work to Plinths 11
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SECTION 3 - GAS STORE 2Section No. 3
Carried to Final Summary R
AmountItemNo
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Science Campus Gas Installation
UNISA
B2051 REV 1
BILL 1
EARTHWORKS (PROVISIONAL)
SUPPLEMENTARY PREAMBLES
Use "assumed to be" if no trial holes, soils investigations, etc have been carried out - discuss with engineer. Use "Trial holes indicate that" where the ground has been investigated by means of trial holes
Nature of ground
"Hard rock” shall mean granite, quartzitic sandstone or other rock of similar hardness, the removal of which requires drilling, wedging and splitting or the use of explosives.
“Soft rock” shall mean hard material the removal of which warrants the use of pneumatic tools and includes hard shale, ferricite, compact ouklip and material of similar hardness.
“Earth” shall mean all ground other than that classified as “hard rock” or “soft rock” and shall include madeup ground and any loose stones or pieces of concrete not exceeding 0,03 m3 in volume.
Descriptions of carting away of excavated material shall be deemed to include loading excavated material onto trucks directly from the excavations or, alternatively, from stock piles situated on the building site
Carting away of excavated material
EXCAVATION, FILLING, ETC OTHER THAN BULK
215m3Trenches1
Excavation in earth not exceeding 2m deep
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Earthworks (Provisional)Bill No. 1SECTION 4 - GAS STORE 3Section No. 4
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B2051 REV 1
11m3Soft rock2
Extra over trench and hole excavations in earth for excavation in
6m3Hard rock3
32m3Surplus material from excavations and/or stock piles on site to a dumping site to be located by the contractor
4
Extra over all excavations for carting away
272m2Sides of trench and hole excavations exceeding 1,5m deep
5
Risk of collapse of excavations
ItemKeeping excavations free of all water other than subterranean water
6
Keeping excavations free of water
80m3Under floors, steps, pavings, etc7
Earth filling (Type G6) supplied by the contractor compacted to 95% Mod AASHTO density
32m3Backfilling to trenches, holes, etc8
10No"Modified AASHTO Density" test9
Prescribed density tests on filling
SOIL POISONING
267m2
Under floors etc including forming and poisoning shallow furrows against foundation walls etc, filling in furrows and ramming
10
Soil insecticide
380m2To bottoms and sides of trenches etc11
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Earthworks (Provisional)Bill No. 1SECTION 4 - GAS STORE 3Section No. 4
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Earthworks (Provisional)
Section No. 4
Bill No. 1
AmountPageNo
SECTION 4 - GAS STORE 3
COLLECTION
Science Campus Gas Installation
UNISA
B2051 REV 1
147
146Total Brought Forward from Page No.
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Earthworks (Provisional)Bill No. 1SECTION 4 - GAS STORE 3Section No. 4
Carried Forward to Summary of Section No. 4 R
AmountItemNo
Quantity Rate
Science Campus Gas Installation
UNISA
B2051 REV 1
BILL 2
CONCRETE, FORMWORK AND REINFORCEMENT
For preambles refer to "Model Preambles for Trades"
PREAMBLES
SUPPLEMENTARY PREAMBLES
The costs of making, storing and testing of concrete test cubes as required under clause 7 "Tests" of SANS 1200 G shall include the cost of providing cube moulds necessary for the purpose for testing costs and for submitting reports on the test to the Principal Agent. The testing shall be undertaken by an independent firm or institution nominated by the contractor to the approval of the Principal Agent. (Test cubes are measured separately)
Cost of tests
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Concrete Formwork & ReinforcementBill No. 2SECTION 4 - GAS STORE 3Section No. 4
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B2051 REV 1
Descriptions of formwork shall be deemed to include use and waste only (except where described as "left in" or "permanent"), for fitting together in the required forms, wedging, plumbing and fixing to true angles and surfaces as necessary to ensure easy release during stripping and for reconditioning as necessary before re-use
The vertical strutting shall be carried down to such construction as is sufficiently strong to afford the required support without damage and shall remain in position until the newly constructed work is able to support itself
Formwork to soffits of solid slabs, etc shall be deemed to be to slabs not exceeding 250mm thick unless otherwise described
Formwork to soffits of slabs, beams, etc shall be deemed to be propped up exceeding 1,50m and not exceeding 3,50m high unless otherwise described
Formwork to sides of bases, pile caps, ground beams, etc will only be measured where it is prescribed by the engineer for design reasons
Formwork
Formwork necessitated by irregularity or collapse of excavated faces will not be measured and the cost thereof shall be deemed to be included in the allowance for taking the risk of collapse of the sides of the excavations, provision for which is made in "Earthworks"
The vertical strutting shall be carried down to such construction as is sufficiently strong to afford the required support without damage and shall remain in position until the newly constructed work is able to support itself.
Formworks to soffits of solid etc shall be deemed to be slabs not exceeding 250mm thick unless otherwise described
Formwork necessitated by irregularity or collapse of excavated faces will not be measured and the cost thereof shall be deemed to be included in the allowance for taking the risk of collapse of the sides of the excavations, provision for which is made in "Earthworks"
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Concrete Formwork & ReinforcementBill No. 2SECTION 4 - GAS STORE 3Section No. 4
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B2051 REV 1
SPECIFICATION FOR SOILCRETE
Soilcrete shall consist of an approved soil or gravel
mixed with 10 % by mass of Portland Cement and only
sufficient water to give it a consistency that will permit
the soilcrete to be placed, using vibrators. The material
used for soilcrete shall be sandy granular material of the
following specifications:
s Minimum Grading Modulus: 1,2
s Maximum Plasticity Index: 10 %
s Maximum particle size: 38 mm
s Detrimental percentages of silt and clay shall be
avoided.
The soilcrete shall be mixed on site using suitable
concrete mixers and the water and cement contents
shall be carefully controlled. It shall be placed and
thoroughly compacted by means of concrete vibrators
so that all voids are filled.
SPECIFICATION FOR PLAIN AND REINFORCED
CONCRETE
The Standardized Specification for Civil Engineering
Construction of the South African Bureau of Standards
shall apply throughout in respect of this contract, in
addition to the additions and saving the exceptions set
out below:
A copy of the said specification shall be furnished by the
contractor and shall be kept on the site.
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Concrete Formwork & ReinforcementBill No. 2SECTION 4 - GAS STORE 3Section No. 4
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PROJECT SPECIFICATION
1. Applicable standardized and particular
specifications
For the purposes of this contract the following
standardized and particular specification shall
apply
SANS 1200 G: CONCRETE (STRUCTURAL)
FINISHING WITH MECHANICAL TROWEL
Power floating should not commence until
such time as the concrete surface has lost its
sheen and barely shows footprints.
All laitance on the surface of the fresh
concrete screed resulting from the compaction
of concrete must be struck off prior to
mechanical trowelling.
Over trowelling, causing an excessive cement-
water paste to come to the surface, must be
strictly avoided.
CURING
Curing should commence as soon as finishing
operations have been completed and should
be continued for at least 7 days. The method
of curing must be approved by the engineer.
JOINTS
The joints should be formed by cutting grooves
3 mm wide by 25 mm deep into the screed.
These joints must be aligned to the joints in
the structural slabs or the slabs on fill, and
must be cut within 8 hours of placing the
screed.
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Concrete Formwork & ReinforcementBill No. 2SECTION 4 - GAS STORE 3Section No. 4
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All smooth formwork must be cleaned, all unevenesses removed and properly prepared to be finished (finish elsewhere)
SMOOTH FORMWORK
UNREINFORCED CONCRETE
5m3Surface blinding under strip footings1
10MPa/19mm concrete
REINFORCED CONCRETE CAST AGAINST EXCAVATED SURFACES
27m3Strip footings2
30MPa/19mm concrete
52m3Surface beds 3
REINFORCED CONCRETE
7m3Ramps laid to falls4
25MPa/19mm concrete
13m3Steps, etc5
27NoMaking and testing 150 x 150 x 150mm concrete strength test cube
6
TEST BLOCKS
CONCRETE SUNDRIES
201m2Surface beds7
Finishing top surfaces of concrete with a broom finish
28m2Ramps laid to falls8
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Concrete Formwork & ReinforcementBill No. 2SECTION 4 - GAS STORE 3Section No. 4
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B2051 REV 1
18NoBedding approximately 50mm thick under 200 x 200mm base plate including chamfered edges all round
9
25 MPa non-shrink grout
ROUGH FORMWORK (DEGREE OF ACCURACY III)
1m2Edges, risers, ends and reveals exceeding 300mm high or wide in foundations (Provisional)
10
Rough formwork to sides
19mEdges, risers, ends and reveals not exceeding 300mm high or wide
11
15mEdges, risers, ends and reveals not exceeding 300mm high or wide in foundations (Provisional)
12
12mEdges, risers, ends and reveals not exceeding 300mm high or wide above concrete
13
4mSloping and stepped outer edges of stairs 1360mm high extreme
14
MOVEMENT JOINTS ETC
55mNot exceeding 300mm wide15
Two layers Malthoid slip joints between horizontal concrete and brick surfaces including cement mortar bed
57m10mm Joints not exceeding 300mm high16
Expansion joints with 10mm softboard between vertical concrete and brick surfaces
REINFORCEMENT
0.699t12mm Diameter bars17
Mild steel reinforcement to structural concrete work
0.699t10mm Diameter bars18
0.699t8mm Diameter bars19
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Concrete Formwork & ReinforcementBill No. 2SECTION 4 - GAS STORE 3Section No. 4
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B2051 REV 1
1.533t32mm Diameter bars20
High tensile steel reinforcement to structural concrete work
1.533t25mm Diameter bars21
1.533t20mm Diameter bars22
1.533t16mm Diameter bars23
1.533t12mm Diameter bars24
1.533t10mm Diameter bars25
203m2Type Ref 193 fabric reinforcement in concrete surface beds, slabs, etc
26
Fabric reinforcement
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Concrete Formwork & ReinforcementBill No. 2SECTION 4 - GAS STORE 3Section No. 4
Carried to Collection R
Concrete Formwork & Reinforcement
Section No. 4
Bill No. 2
AmountPageNo
SECTION 4 - GAS STORE 3
COLLECTION
Science Campus Gas Installation
UNISA
B2051 REV 1
155
154
153
152
151
150
149Total Brought Forward from Page No.
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Concrete Formwork & ReinforcementBill No. 2SECTION 4 - GAS STORE 3Section No. 4
Carried Forward to Summary of Section No. 4 R
AmountItemNo
Quantity Rate
Science Campus Gas Installation
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B2051 REV 1
BILL 3
MASONRY
For preambles refer to "Model Preambles for Trades"
PREAMBLES
SUPPLEMENTARY PREAMBLES
BRICKWORK
Where sizes in descriptions are given in brick units, "one brick" shall represent the length and "half brick" the width of a brick
Sizes in descriptions
Descriptions of hollow walls are deemed to include for leaving every fifth perpend of the bottom course of the external skin open as a weep hole
Hollow walls etc
Descriptions of solid walls (except if built in English bond) and cavity walls shall be deemed to include hot-dipped galvanised wall ties complying with SABS 28 and of the butterfly or of the modified PWD type, of the required length with each end built at least 75mm deep into brickwork, spaced at not more than 1m centres alternatively to every third course of brickwork
Wall ties
Descriptions of recessed pointing to fair face brickwork and face brickwork shall be deemed to include square recessed, hollow recessed, weathered pointing, etc
Pointing
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MasonryBill No. 3SECTION 4 - GAS STORE 3Section No. 4
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UNISA
B2051 REV 1
Samples of all masonry building units, except those for walls described as "load bearing", shall consist of a minimum of 6 units. Samples of building units to be used in walls described as "load bearing" shall consist of30 units from every 30 000 units delivered to site
Samples
FOUNDATIONS (PROVISIONAL)
122m2One and a half brick walls 1
Brickwork in NFP bricks (7MPa nominal compressive strength) in class II mortar with all joints grouted in solid with liquid cement mortar
SUPERSTRUCTURE
Non-bearing brickwork
242m2One brick walls2
Brickwork in NFP bricks (7MPa nominal compressive strength) in class II mortar with all joints grouted in solid with liquid cement mortar
BRICKWORK SUNDRIES
717m75mm Wide reinforcement built in horizontally3
Brickwork reinforcement
711m150mm Wide reinforcement built in horizontally4
FACE BRICKWORK
512m2Extra over brickwork for face brickwork5
Approved external face bricks (FBX) with a PC Amount of R5 000.00 per thousand bricks delivered to site (excluding VAT) recessed pointed horizontal and vertical joints with cement mortar to match colour of face bricks
2mExtra over brickwork for brick-on-edge cut soldier courselintel pointed on face and 115mm soffit
6
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MasonryBill No. 3SECTION 4 - GAS STORE 3Section No. 4
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UNISA
B2051 REV 1
73mCoping on top of one brick wall7
-159-
MasonryBill No. 3SECTION 4 - GAS STORE 3Section No. 4
Carried to Collection R
Masonry
Section No. 4
Bill No. 3
AmountPageNo
SECTION 4 - GAS STORE 3
COLLECTION
Science Campus Gas Installation
UNISA
B2051 REV 1
159
158
157Total Brought Forward from Page No.
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MasonryBill No. 3SECTION 4 - GAS STORE 3Section No. 4
Carried Forward to Summary of Section No. 4 R
AmountItemNo
Quantity Rate
Science Campus Gas Installation
UNISA
B2051 REV 1
BILL 4
WATERPROOFING
For preambles refer to "Model Preambles for Trades"
PREAMBLES
SUPPLEMENTARY PREAMBLES
Waterproofing of roofs, basements, etc shall be laid under a ten year guarantee. Waterproofing to roofs shall be laid to even falls to outlets etc with necessary ridges, hips and valleys. Descriptions of sheet or membrane waterproofing shall be deemed to include additional labour to turn-ups and turn-downs
Waterproofing
DAMPPROOFING OF WALLS AND FLOORS
28m2In walls1
One layer of 375 micron "Consol Plastics Brikgrip DPC" embossed damp proof course
267m2Under surface beds2
One layer of 250 micron "Consol Plastics Gunplas USB Green" waterproof sheeting sealed at laps with "Gunplas Pressure Sensitive Tape"
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WaterproofingBill No. 4SECTION 4 - GAS STORE 3Section No. 4
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AmountItemNo
Quantity Rate
Science Campus Gas Installation
UNISA
B2051 REV 1
BILL 5
ROOF COVERINGS ETC
For preambles refer to "Model Preambles for Trades"
PREAMBLES
SUPPLEMENTARY PREAMBLES
Descriptions of all roof coverings are deemed to include for all straight cutting
Straight cutting
The roof covering and cladding is to be carried out strictly in accordance with the manufacturer's instruction. On completion the roof covering and accessories are to be inspected by the Manufacturer who is to provide a 5 year guarantee against defective materials and faulty workmanship
The roof is to be guaranteed weather tight for a period of 5 years period, calculated from the handed over date of the completed project
Guarantee
PROFILED METAL SHEETING AND ACCESSORIES
216m2Roof covering with pitch not exceeding 25 degrees1
0,58mm "Brownbuilt Klip-lok 700" Z275 spelter embossed galvanised troughed sheet steel with "Global duro-coat" finish to one side in single lengths fixed to steel purlins or rails (purlins and rails elsewhere) and including 0,8mm embossed galvanised sheet steel accessories with "Global duro-coat" finish to one side
15mFK79 Sidewall flashing 408mm girth twice times bent and notched on site to suit roof profile
2
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Roof Coverings etcBill No. 5SECTION 4 - GAS STORE 3Section No. 4
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B2051 REV 1
17mFK78 Headwalll flashing 375mm girth twice times bent and notched on site to suit roof profile
3
43mSerrated closers to ridges, hips, valleys, headwalls, etc4
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Roof Coverings etcBill No. 5SECTION 4 - GAS STORE 3Section No. 4
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Roof Coverings etc
Section No. 4
Bill No. 5
AmountPageNo
SECTION 4 - GAS STORE 3
COLLECTION
Science Campus Gas Installation
UNISA
B2051 REV 1
163
162Total Brought Forward from Page No.
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Roof Coverings etcBill No. 5SECTION 4 - GAS STORE 3Section No. 4
Carried Forward to Summary of Section No. 4 R
AmountItemNo
Quantity Rate
Science Campus Gas Installation
UNISA
B2051 REV 1
BILL 6
METALWORK
For preambles refer to "Model Preambles for Trades"
PREAMBLES
SUPPLEMENTARY PREAMBLES
Descriptions of bolts shall be deemed to include nuts and washers
Descriptions of expansion anchors and bolts and chemical anchors and bolts shall be deemed to include nuts, washers and mortices in brickwork or concrete
Metalwork described as "holed for bolt(s)" shall be deemed to exclude the bolts unless otherwise described
Descriptions
SUNDRIES
124,000.00ItemAllow the amount of R124,000.00 (One Hundred and Twenty Four Thousand Rand) for steel fencing.
1
Budgetary allowance
20,000.00ItemAllow the amount of R20,000.00 (Twenty Thousand Rand) for gates.
2
4,000.00ItemAllow the amount of R4,000.00 (Four Thousand Rand) for vermin proof expanded mesh.
3
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MetalworkBill No. 6SECTION 4 - GAS STORE 3Section No. 4
Carried Forward to Summary of Section No. 4 R
AmountItemNo
Quantity Rate
Science Campus Gas Installation
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BILL 7
STRUCTURAL STEELWORK
For preambles refer to "Model Preambles for Trades"
PREAMBLES
SUPPLEMENTARY PREAMBLES
Descriptions of bolts shall be deemed to include nuts and washers
Descriptions
Descriptions of L-shaped and U-shaped anchor bolts shall be deemed to include bending, threading, nuts and washers and embedding in concrete
Descriptions of expansion anchors and bolts and chemical anchors and bolts shall be deemed to include nuts, washers and mortices in brickwork or concrete
Descriptions of L-shaped and U-shaped anchor bolts shall be deemed to include bending, threading, nuts and washers and embedding in concrete. Where anchor bolts are described as embedded in sides or soffits of concrete it shall be deemed to include holes through formwork.
Descriptions of expansion anchors and bolts and chemical anchors and bolts shall be deemed to include nuts, washers and mortices in brickwork or concrete.
SPECIFICATION FOR STRUCTURAL STEELWORK
The Standardized Specification for Civil Engineering Construction of the South African Bureau of Standards shall apply throughout in respect of this contract in addition to the additions and saving the exceptions set out below.
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EQUIVALENCY OF STANDARDS
Wherever reference is made in the Contract to SANSstandards and/or code requirements to be met by thegoods and materials to be furnished, work performed ortested, the provisions of the latest edition or revision ofthe relevant SANS standards and codes in effect shallapply, unless otherwise stated in the Contract.Whenever reference is made to SANS standards andcodes, other authoritative standards and codes thatensure an equal or higher quality than the relevantSANS standards and codes, will be accepted subject tothe Project Engineer’s prior review and written consent.Differences between the standards specified and theproposed alternative standards shall be fully describedin writing by the Tenderer/Contractor and submitted tothe Project Engineer at least twenty eight days prior tothe date when the Contractor/Tenderer desires theProject Engineer’s consent. In the event that the ProjectEngineer determines that such deviations are not of ahigh enough or better standard, the Tenderer/Contractorshall comply with the specified document.
A copy of the said specification shall be furnished by theContractor and shall be kept on the site.
A list of British specifications which are deemed to beequivalent to the relevant SANS specifications are listedat the end of this specification.
PROJECT SPECIFICATION
Should a requirement of the said standardizedspecification be inconsistent with a requirement of theproject specification, the latter shall take precedence.
1. APPLICABLE SPECIFICATIONS
SANS 1200 H: STRUCTURAL STEELWORKSANS 1200 HC: CORROSION PROTECTION
OF STRUCTURAL STEELWORK
THE SUBCLAUSES OF SANS 1200 H ARE AMENDED AS FOLLOWS
2.1 Subclause 3: Structural steel
The steel shall be Grade 350W for hot rolled steel sections (I, H, C, L). All other
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rolled steel sections (I, H, C, L). All other members shall carry the Grade 300W steel symbol to identify steel grade prior to manufacturing.
The thickness specified of a checker (“vastrap”) floor plate, is the under-pattern thickness.
2.2 Subclause 5.1 and subsubclause 5.1.2: Contractor provides shop details
The contractor shall furnish the engineer with shop-detail drawings within two weeks of having received the design drawings. Workshop drawings shall be drawn in Stru-Cad. The engineer will check the drawings for conformity with design requirements andwill return the drawings with additions and corrections, if any, within one week of having received them. Detailed checking of shop details for dimensional accuracy and installation fit, will not be done by the engineer.
2.3 Subsubclause 5.2.3: Cutting
The edges of flame-cut plates shall be ground smooth.
2.4 Subsubclause 5.6.1: Grouting responsibility
Grouting shall be done by the Main contractor.
2.5 Subsubclause 5.3.4: Welding
2.5.1 The applicable welding code for (a) All welders shall be coded
welders. (b)(d) The Engineer may at his
discretion identify welds for non-destructive
(e) No staggered or intermittent welding is permitted.
(f) No welding on site is permitted unless approved by the engineer. Any site welder and site welding procedure will
(h) The Contractor shall submit for
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review an outline of the Quality Control
2.5.2 Weld testing
2.5.2.1 General
a. Personnel
performing non-
destructive testing
other than visual
shall be qualified
in accordance
with the
stipulations of the
code.
b. Full penetration
butt welds are to
be radio
graphically tested
in accordance
with (2.5.2.2)
below). A
minimum of 50%
of full penetration
welds shall be
tested. If more
than 5% of the
examined welds
show
unsatisfactory
results, then
additional
examinations
covering all welds
shall be
performed.
2.5.2.2 Non-destructive examination
a. Non-destructive
procedures,
techniques and
acceptance
criteria shall be as
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required by AWS
D1.1.
b. All non-
destructive
examination shall
be in accordance
with written
procedures. The
Engineer shall
have the right to
examine and
approve the
written
procedures.
c. Full penetration
but welds shall be
radio graphically
tested or
ultrasonically
tested to the
requirements of
AWS D1.1.
d. Ultrasonic and
radiographic
examinations
shall not be made
within the period
of 24 hours after
completion of
welding.
e. Cost of
examination
listed under
to be borne
by the
Contractor.
f. All costs (time,
travelling, tests)
incurred by non-
destructive
examinations due
to non-
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conformance of
specifications and
due to any latent
defects in material
and welding shall
be borne by the
Contractor.
g. Fillet welds will be
inspected and
tested to AWS
D1.1 at the
discretion of the
Engineer.
h. Certificates of
non-destructive
testing shall be
submitted to the
Engineer.
Subsubclause 8.3.6: Measurement of andpayment for protective coating
Surface preparation, priming, shop and sitepainting shall be measured in m² of surfacetreated.
2.7 Subclause 7.1: Test certificates
Test certificates pertaining to the steel to beused shall be submitted to the engineer bythe contractor before fabricationcommences.
The engineer reserves the right to inspectall structural steel in the workshop before itis delivered to the site.
2.8 Subsubclause 6.2.2: Other tolerances
Degree of accuracy II shall apply unlessindicated otherwise elsewhere.
ADDITIONAL CLAUSES
3.1 Protective treatment and painting
3.1.1 General
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3.1.1.1 All paint shall be delivered at the workshop as well as on the site in the original containers that display the manufacturer’s name and trademark as well as the SABS mark. The engineer may, at his discretion, prescribe the manufacturer and the type of paint.
The coating system shall be from one manufacturer only. The paint manufacturer’s instructions shall be strictly adhered to.
3.1.1.2 Surfaces in contact with each other after assembly or erection shall receive the primer beforehand, except for faying surfaces for friction-grip fasteners.
3.1.1.3 The application of the final coats of paint before erection will be permitted by the engineer only in special circumstances or where specified elsewhere.
3.1.1.4 After erection of the steelwork, the specified paint system shall be reinstated in all areas where it has been damaged. All fasteners shall also be treated in accordance with the specified paint system.
3.1.1.5 No painting on the site shall be done in inclement weather or when humidity or frost is
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liable to cause wet or damp conditions on the surface to be painted.
3.1.1.6 No painting shall be done
if the temperature fallsbelow 7° C.
3.1.1.7 Welded seams shall be thoroughly steel-brushed before painting. Permission shall be obtained from the engineer before slag residue may be neutralized with acids or alkalis.
3.1.2 Surface preparation in the workshop
SIS 05 59 00 or ISO 8501 shall apply and shall be referred to in respect of this clause.
3.1.2.1 Manual scraping and wire brushing. This treatment shall normally be applied in all circumstances except if and where blast cleaning is specified.
- Prior to treatment, the steel surface shall be cleaned of dirt and grease
- Heavier layers of rust shall be removed by chipping
- All loose mill scale, rust and foreign matter shall be removed by very thorough scraping, wire-brushing, machine-brushing, grinding, etc
- Finally the surface
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shall be cleaned by vacuum cleaner, with clean dry compressed air, or with a clean brush
- The surface shall have a pronounced metallic sheen with an appearance equal to or better than that shown on the prints designated ST 3 in SIS 05 59 00 or ISO 8501
3.1.2.2 Blast-cleaning
This treatment may be used but is not obligatory unless so specified hereinafter. If blast cleaning is preferred to normal scraping and wire brushing, the final surface shall be equal to or better than that specified in subsubclause 3.1.2.1.
Paint system
The paint system shall be applied in accordance with the specifications given in table 3.1 below. Application may be by brush, roller or sprayed. Red lead may not be used.
All structural steel which is not visible, eg purlins, rafters and trusses, shall receive only the primer coat. All visible steel shall receive the full appropriate paint system treatment.
In all cases the manufacturer’s specification for any paint product must be followed.
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Paint system for newly galvanized surfaces
3.2.1 Recommended surface preparation:
- Degrease with Plascon Aquasole Degreaser GR 1 or similar approved. Any cement or foreign material must also be removed from the metal surface.
- Rinse with clean running water while protecting the floors and walls.
- Wash with Galvanised Iron Cleaner GIC 1 by Plascon, or similar approved.
- Rinse with clean running water and allow to dry. Protect the floors and walls.
3.2.2 Apply one coat of Plascon Aquafast Etch Primer no EMS 18 or similar approved to a total dry thickness of 35 micron. Must be overcoated within 72 hours to avoid excessive hardening.
3.2.3 One final coat as specified in table 3.1.
HOT DIPPED GALVANIZING (See also subclause 5.9in SANS 1200H)
Steelwork described as "galvanised" shall begalvanised after manufacturing and beforedelivering to site by means of the hot dippedprocess complying with the minimumrequirements of SANS 121 (SABS ISO 1461),1999 latest amendment. Structural steelmembers shall be given an 85 micron thickgalvanised coating or such other thickness asmay be specified in accordance with SANS 121(SABS ISO 1461) (Table 1.)Damaged surfaces must be thoroughly cleanedand if welding has been carried out all slag mustbe removed preferably by the use of a chiselhammer.
Before galvanising all surfaces of the metalworkshall be thoroughly cleaned of all scale and rust
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by shot-blasting in accordance with SANS 10064or by pickling and then fluxed ready forgalvanising.
The zinc coating shall be even and continuousover all surfaces, free of bare spots, dull or roughpatches, blisters or other imperfections. The zinccoating shall show no signs of peeling and shallbe uniform in thickness.
All M8 and greater bolts, nuts, screws and otherthreaded components, shall be hot-dip galvanisedto SANS 121 (SABS ISO 1461) (previouslyarticles type C.)
Repairing of damaged coatings
Plant repairs
Should any black spots or uncoated areas greaterthan 5 mm2 (individual) or 25 mm2 (collective) perm2 or per m run be present after galvanizing, thecoating shall be repaired. This is to be carried outusing abrasive blasting following by zinc metalspray. The zinc metal spray shall be applied atleast 25 % thicker than that specified and shalloverlap the damaged area by 20-25 mm. Thefinished coating shall be wire brushed to removeany excess metal spray.
Hot patch soldering is an alternative at the plantbut is seldomly used, as the method needs to beconducted while the product is still hot beforequenching.
Site Repairs
Zinc metal spray as set out above.
The recommended alternative is to use a zinc richpaint provided it has at leas 90 % zinc in the dryfilm, by mass. The paint should be a zinc richepoxy in conformance with SANS 926. A singlepack zinc rich paint such as Plascon’s “PlascozincPolygalv Primer” or equal can be applied.
5. LIST OF SPECIFICATIONS AND CODES
STRUCTURES
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Standard Specification British Standardsfor Civil Engineering EquivalentsConstuction
SANS 1200H: Structural BS 4, BS 449, BS 5531,
steel DD ENV 1993
SANS 1200HC: Corrosion BS 5493 protection of structural steel
AWS D1.1: Welding of steel BS 709, BS 4360, and procedures BS 5135
SANS 912 : Calcium plumbate BS 3698 primer
SANS 630: Decorative high BS 6150, BS 6952 gloss enamel paint for interior and exterior use
SANS 684: Structural steel BS 5493 paint
SANS 10243: The design, BS 5268manufacturer and erection of timber trusses
SANS 10160: The general BS 6399procedures and loadingsto be adopted for the design of buildings
SANS 121: Hot dipped galvanised BS 729, BS 1706coatings on fabricated iron and steel articles -Specifications and testmethods
SANS 10400: The application DD ENV 1992-1-1of the National BuildingRegulations
SANS 10155: Permissible BS 5964accuracy in building
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STEEL COLUMNS AND BEAMS
0.22t200 x 150mm x 4.5mm Thick SHS columns built into brickwork
1
Welded columns in single lengths with flat section base, top, bearer and connection plates bolted to concrete
1.76tIPE160 beams2
Welded beams in single lengths with flat section bearer and connection plates bolted to concrete
1.21tIPE180 beams3
251NoM12 chemical expansion bolt4
Bolts to columns, beams, etc
PURLINS, GIRTS, BRACING, ETC
1.11tLipped channel section purlins5
Purlins and girts bolted to steel
0.34tAngle section bracing6
Welded bracing etc with flat section connection plates bolted to steel
SUNDRIES
0.459t4mm - 12mm Thick x 7.85kg/mm all bolted and welded to steel
7
Welded stiffener-, spacer-, end-, toe-, cap-, extention-, base-, and gusset plates including cleats all bolted to steel (Grade 8.8 bolts elsewhere)
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Structural Steelwork
Section No. 4
Bill No. 7
AmountPageNo
SECTION 4 - GAS STORE 3
COLLECTION
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178
177
176
175
174
173
172
171
170
169
168
167
166Total Brought Forward from Page No.
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BILL 8
PLUMBING AND DRAINAGE
For preambles refer to "Model Preambles for Trades"
PREAMBLES
Tenderers are advised to also study the "Specific Notes on installation and materials to be used on LPHC" at the back of these Bills of Quantities. All specific requirements stipulated in this document should be strictly adhered to.
It is a strict condition that the plumbing contractor should also be a registered "Gerberit" installer and proof of required certification will have to be submitted
RAINWATER DISPOSAL
43m150 x 150mm Eaves gutters with beaded front edge1
0,6mm Sheet iron with Chromadek finish coated internally and externally (colour Fish Eagle White) fixed with purpose made concealed brackets
4NoExtra over 150 x 150mm eaves gutter for stopped end2
6NoExtra over 150 x 150mm eaves gutter for outlet for 75 x 100mm pipe
3
23m75 x 100mm Rainwater pipes4
18NoExtra over 75 x 100mm rainwater pipe for 45 degree bend
5
6NoExtra over 75 x 100mm rainwater pipe for shoe6
DUCTS FOR ELECTRICAL AND TELEPHONE CABLES ETC
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130mSet of two 110mm pipes laid in and including trenches not exceeding 1m deep
7
uPVC Heavy duty (SDR34) pipes
4No110mm Slow bend sleeves8
Extra over uPVC pipes for fittings, etc
8No110mm Bend 9
4No110mm Tee10
2NoManhole size 600 x 600mm internally (See detail on drawing JRA-SD-SW-050)
11
Sumps, catchpits, inspection chambers, etc (gratings and covers elsewhere)
2NoCover and frame for electrical manhole (See detail on drawing JRA-SD-SW-050)
12
Gratings, covers, etc
2m3Extra over excavation in earth for pipe trenches, chambers, etc for excavation in soft rock
13
Sundries
4m3Extra over excavation in earth for pipe trenches, chambers, etc for excavation in hard rock
14
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Plumbing and Drainage (Provisional)
Section No. 4
Bill No. 8
AmountPageNo
SECTION 4 - GAS STORE 3
COLLECTION
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181
180Total Brought Forward from Page No.
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BILL 9
PAINTWORK
For preambles refer to "Model Preambles for Trades"
PREAMBLES
SUPPLEMENTARY PREAMBLES
Description of paintwork shall be deemed to include for the preparation of surfaces, including filling, stopping, sanding, priming, of nail heads and screws and for all cutting in
Descriptions
All painting shall be done in accordance with "PLASCON" specifications and rates must include for all primers undercoats and final coats. A representative from "Plascon" will be expected to inspect/test work in progress
Paint specification
PAINTWORK ETC TO NEW WORK
ON METAL
328m2On fencing 1
One coat "Plascon Merit Metal Primer" and two coats "Plascon Velvaglo Satin" emulsion paint to specification
33m2On gates 2
ON STRUCTURAL STEELWORK
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363m2On columns, beams, etc 3
Remove all harmful deposits on surface of steel such as oil, grease, chemical deposits, clay, bitumen or mud, brush steel with rotary wire brush to SIS 05 59 00, apply one coat (40 micron ±5 micron) sinc chromate primer in accordance with SABS 679, one coat (40 micron minimum) multi purpose unercoat in accordance with SABS 681 (type II paint) and two coats "Plascon" alkyd enamel paint (40 micron) in accordance with SABS 630 (type I paint)
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Paintwork
Section No. 4
Bill No. 9
AmountPageNo
SECTION 4 - GAS STORE 3
COLLECTION
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184
183Total Brought Forward from Page No.
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BILL 10
EXTERNAL WORKS (PROVISIONAL)
SUPPLEMENTARY PREAMBLES
The nature of the ground is assumed to be loose sandy material, therefore "earth", but possibly interspersed with "hard rock" or "soft rock"
Nature of ground
Descriptions of carting away of excavated material shall be deemed to include loading excavated material onto trucks directly from the excavations or, alternatively, from stock piles situated on the building site
Carting away of excavated material
BULK EARTHWORKS
213m3Reduced levels over sloping site1
Excavation in earth not exceeding 2m deep
11m3Soft rock2
Extra over bulk excavation in earth for excavation in
37m3Hard rock3
ItemKeeping excavations free of all water other than subterranean water
4
Keeping excavations free of water
213m3Surplus material from excavations and/or stock piles on site to a dumping site located by the contractor
5
Extra over all excavations for carting away
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213m2
Compaction of ground surface for roads and platforms including scarifying for a depth of 150mm, breaking down oversize material and compacting to 93% Mod AASHTO density at optimum moisture content
6
Compaction of surfaces
32m3Over site to form platforms7
Earth filling obtained from the excavations and/or prescribed stock piles on site compacted to 93%Mod AASHTO density
22No
Vanstone P2-0305 250mm diameter precast concrete bollard including 600 x 600 x 600mm reinforced concrete base
8
Precast concrete finished smooth on exposed surfaces including bedding, jointing and pointing
65mLine 100mm wide9
Road marking paint on paving
SUNDRIES
20,000.00Item
Allow the amount of R20,000.00 (Twenty Thousand Rand) for external ramps to later detail
10
Budgetary allowance
5,000.00ItemAllow the amount of R5,000.00 (Five Thousand Rand) todemolish kerb inlet and blank off stormwater pipe.
11
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Section No. 4
Bill No. 10
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COLLECTION
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187
186Total Brought Forward from Page No.
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SECTION 4 - GAS STORE 3
SECTION SUMMARY - SECTION 4 - GAS STORE 3
BillNo
PageNo
Amount
Section No. 4
148Earthworks (Provisional)1
156Concrete Formwork & Reinforcement2
160Masonry3
161Waterproofing4
164Roof Coverings etc5
165Metalwork6
179Structural Steelwork7
182Plumbing and Drainage (Provisional)8
185Paintwork9
188External Works (Provisional)10
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EARTHWORKS (PROVISIONAL)
SUPPLEMENTARY PREAMBLES
Use "assumed to be" if no trial holes, soils investigations, etc have been carried out - discuss with engineer. Use "Trial holes indicate that" where the ground has been investigated by means of trial holes
Nature of ground
"Hard rock” shall mean granite, quartzitic sandstone or other rock of similar hardness, the removal of which requires drilling, wedging and splitting or the use of explosives.
“Soft rock” shall mean hard material the removal of which warrants the use of pneumatic tools and includes hard shale, ferricite, compact ouklip and material of similar hardness.
“Earth” shall mean all ground other than that classified as “hard rock” or “soft rock” and shall include madeup ground and any loose stones or pieces of concrete not exceeding 0,03 m3 in volume.
Descriptions of carting away of excavated material shall be deemed to include loading excavated material onto trucks directly from the excavations or, alternatively, from stock piles situated on the building site
Carting away of excavated material
DEMOLITIONS ETC
21m2Löffelstein retaining wall including concrete strip footing, etc (approximately 12m long)
1
Breaking up and removing
45m280mm Thick brick paving with mortar joints2
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12m150 x 300mm Concrete kerbs3
SITE CLEARANCE ETC
45m2Stripping average 150mm thick layer of top soil and stockpiling on site
4
Site clearance
EXCAVATION, FILLING, ETC OTHER THAN BULK
22m2
Exceeding 1.50m and not exceeding 3.0m deep for placing and removing formwork to walls etc 750mm away from excavated face
5
Back excavation of vertical sides of excavation in earth for working space including backfilling compacted to 98 % Mod AASHTO density
2m3Unreinforced concrete6
Extra over trench and hole excavations in earth for breaking up and removing
8m3Surplus material from excavations and/or stock piles on site to a dumping site to be located by the contractor
7
Extra over all excavations for carting away
22m2Sides of trench and hole excavations not exceeding 1,5m deep
8
Risk of collapse of excavations
ItemKeeping excavations free of all water other than subterranean water
9
Keeping excavations free of water
8m3Backfilling behind retaining walls10
Earth filling supplied by the contractor compacted to 95% Mod AASHTO density
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20m3Under floors, steps, pavings, etc11
Earth filling (Type G7) supplied by the contractor compacted to 93% Mod AASHTO density
45m2
Compaction of ground surface under floors etc including scarifying for a depth of 150mm, breaking down oversize material, adding suitable material where necessary and compacting to 93% Mod AASHTO density
12
Compaction of surfaces
5No"Modified AASHTO Density" test13
Prescribed density tests on filling
SOIL POISONING
45m2
Under floors etc including forming and poisoning shallow furrows against foundation walls etc, filling in furrows and ramming
14
Soil insecticide
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Bill No. 1
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192
191
190Total Brought Forward from Page No.
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BILL 2
CONCRETE, FORMWORK AND REINFORCEMENT
For preambles refer to "Model Preambles for Trades"
PREAMBLES
SUPPLEMENTARY PREAMBLES
The costs of making, storing and testing of concrete test cubes as required under clause 7 "Tests" of SANS 1200 G shall include the cost of providing cube moulds necessary for the purpose for testing costs and for submitting reports on the test to the Principal Agent. The testing shall be undertaken by an independent firm or institution nominated by the contractor to the approval of the Principal Agent. (Test cubes are measured separately)
Cost of tests
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Descriptions of formwork shall be deemed to include use and waste only (except where described as "left in" or "permanent"), for fitting together in the required forms, wedging, plumbing and fixing to true angles and surfaces as necessary to ensure easy release during stripping and for reconditioning as necessary before re-use
The vertical strutting shall be carried down to such construction as is sufficiently strong to afford the required support without damage and shall remain in position until the newly constructed work is able to support itself
Formwork to soffits of solid slabs, etc shall be deemed to be to slabs not exceeding 250mm thick unless otherwise described
Formwork to soffits of slabs, beams, etc shall be deemed to be propped up exceeding 1,50m and not exceeding 3,50m high unless otherwise described
Formwork to sides of bases, pile caps, ground beams, etc will only be measured where it is prescribed by the engineer for design reasons
Formwork
Formwork necessitated by irregularity or collapse of excavated faces will not be measured and the cost thereof shall be deemed to be included in the allowance for taking the risk of collapse of the sides of the excavations, provision for which is made in "Earthworks"
The vertical strutting shall be carried down to such construction as is sufficiently strong to afford the required support without damage and shall remain in position until the newly constructed work is able to support itself.
Formworks to soffits of solid etc shall be deemed to be slabs not exceeding 250mm thick unless otherwise described
Formwork necessitated by irregularity or collapse of excavated faces will not be measured and the cost thereof shall be deemed to be included in the allowance for taking the risk of collapse of the sides of the excavations, provision for which is made in "Earthworks"
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Concrete Formwork & ReinforcementBill No. 2SECTION 5 - GAS STORE 4Section No. 5
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SPECIFICATION FOR SOILCRETE
Soilcrete shall consist of an approved soil or gravel
mixed with 10 % by mass of Portland Cement and only
sufficient water to give it a consistency that will permit
the soilcrete to be placed, using vibrators. The material
used for soilcrete shall be sandy granular material of the
following specifications:
s Minimum Grading Modulus: 1,2
s Maximum Plasticity Index: 10 %
s Maximum particle size: 38 mm
s Detrimental percentages of silt and clay shall be
avoided.
The soilcrete shall be mixed on site using suitable
concrete mixers and the water and cement contents
shall be carefully controlled. It shall be placed and
thoroughly compacted by means of concrete vibrators
so that all voids are filled.
SPECIFICATION FOR PLAIN AND REINFORCED
CONCRETE
The Standardized Specification for Civil Engineering
Construction of the South African Bureau of Standards
shall apply throughout in respect of this contract, in
addition to the additions and saving the exceptions set
out below:
A copy of the said specification shall be furnished by the
contractor and shall be kept on the site.
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PROJECT SPECIFICATION
1. Applicable standardized and particular
specifications
For the purposes of this contract the following
standardized and particular specification shall
apply
SANS 1200 G: CONCRETE (STRUCTURAL)
FINISHING WITH MECHANICAL TROWEL
Power floating should not commence until
such time as the concrete surface has lost its
sheen and barely shows footprints.
All laitance on the surface of the fresh
concrete screed resulting from the compaction
of concrete must be struck off prior to
mechanical trowelling.
Over trowelling, causing an excessive cement-
water paste to come to the surface, must be
strictly avoided.
CURING
Curing should commence as soon as finishing
operations have been completed and should
be continued for at least 7 days. The method
of curing must be approved by the engineer.
JOINTS
The joints should be formed by cutting grooves
3 mm wide by 25 mm deep into the screed.
These joints must be aligned to the joints in
the structural slabs or the slabs on fill, and
must be cut within 8 hours of placing the
screed.
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All smooth formwork must be cleaned, all unevenesses removed and properly prepared to be finished (finish elsewhere)
SMOOTH FORMWORK
UNREINFORCED CONCRETE
2m3Surface blinding under surface beds1
10MPa/19mm concrete
REINFORCED CONCRETE CAST AGAINST EXCAVATED SURFACES
5m3Surface beds 2
30MPa/19mm concrete
5m3Surface beds laid to falls and currents3
REINFORCED CONCRETE
12m3Walls4
30MPa/19mm concrete
6NoMaking and testing 150 x 150 x 150mm concrete strength test cube
5
TEST BLOCKS
CONCRETE SUNDRIES
23m2Surface beds6
Finishing top surfaces of concrete with a broom finish
25m2Surface beds to falls and currents not exceeding 1%7
2NoBedding approximately 50mm thick under 175 x 175mm base plate including chamfered edges all round
8
25 MPa non-shrink grout
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1NoBedding approximately 50mm thick under 1320 x 180mm I beam including chamfered edges all round
9
ROUGH FORMWORK (DEGREE OF ACCURACY III)
92m2Walls propped exceeding 1,5 and not exceeding 3,5m high
10
Rough formwork to sides
15m2
Walls propped exceeding 3,5 and not exceeding 5.0m high
11
11mEdges, risers, ends and reveals not exceeding 300mm high or wide
12
11m20 x 20mm Chamfer to top edge13
Boxing in rough formwork to form
MOVEMENT JOINTS ETC
20mNot exceeding 300mm wide14
Two times, three layer Malthoid slip joints between vertical concrete and brick surfaces including cement mortar bed
REINFORCEMENT
0.187t12mm Diameter bars15
Mild steel reinforcement to structural concrete work
0.187t10mm Diameter bars16
0.187t8mm Diameter bars17
0.374t32mm Diameter bars18
High tensile steel reinforcement to structural concrete work
0.374t25mm Diameter bars19
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0.374t20mm Diameter bars20
0.374t16mm Diameter bars21
0.374t12mm Diameter bars22
0.374t10mm Diameter bars23
45m2Type Ref 193 fabric reinforcement in concrete surface beds, slabs, etc
24
Fabric reinforcement
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Concrete Formwork & Reinforcement
Section No. 5
Bill No. 2
AmountPageNo
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COLLECTION
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200
199
198
197
196
195
194Total Brought Forward from Page No.
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BILL 3
MASONRY
For preambles refer to "Model Preambles for Trades"
PREAMBLES
SUPPLEMENTARY PREAMBLES
BRICKWORK
Where sizes in descriptions are given in brick units, "one brick" shall represent the length and "half brick" the width of a brick
Sizes in descriptions
Descriptions of hollow walls are deemed to include for leaving every fifth perpend of the bottom course of the external skin open as a weep hole
Hollow walls etc
Descriptions of solid walls (except if built in English bond) and cavity walls shall be deemed to include hot-dipped galvanised wall ties complying with SABS 28 and of the butterfly or of the modified PWD type, of the required length with each end built at least 75mm deep into brickwork, spaced at not more than 1m centres alternatively to every third course of brickwork
Wall ties
Descriptions of recessed pointing to fair face brickwork and face brickwork shall be deemed to include square recessed, hollow recessed, weathered pointing, etc
Pointing
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MasonryBill No. 3SECTION 5 - GAS STORE 4Section No. 5
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Samples of all masonry building units, except those for walls described as "load bearing", shall consist of a minimum of 6 units. Samples of building units to be used in walls described as "load bearing" shall consist of30 units from every 30 000 units delivered to site
Samples
SUPERSTRUCTURE
Non-bearing brickwork
33m2One brick walls1
Brickwork in NFP bricks (7MPa nominal compressive strength) in class II mortar with all joints grouted in solid with liquid cement mortar
1m2Cutting toothings and bondings2
BRICKWORK SUNDRIES
97m150mm Wide reinforcement built in horizontally3
Brickwork reinforcement
FACE BRICKWORK
67m2Extra over brickwork for face brickwork4
Approved external face bricks (FBX) with a PC Amount of R5 000.00 per thousand bricks delivered to site (excluding VAT) recessed pointed horizontal and vertical joints with cement mortar to match colour of face bricks
12mCoping on top of one brick wall5
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Masonry
Section No. 5
Bill No. 3
AmountPageNo
SECTION 5 - GAS STORE 4
COLLECTION
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203
202Total Brought Forward from Page No.
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BILL 4
WATERPROOFING
For preambles refer to "Model Preambles for Trades"
PREAMBLES
SUPPLEMENTARY PREAMBLES
Waterproofing of roofs, basements, etc shall be laid under a ten year guarantee. Waterproofing to roofs shall be laid to even falls to outlets etc with necessary ridges, hips and valleys. Descriptions of sheet or membrane waterproofing shall be deemed to include additional labour to turn-ups and turn-downs
Waterproofing
DAMPPROOFING OF WALLS AND FLOORS
3m2In walls1
One layer of 375 micron "Consol Plastics Brikgrip DPC" embossed damp proof course
45m2Under surface beds2
One layer of 250 micron "Consol Plastics Gunplas USB Green" waterproof sheeting sealed at laps with "Gunplas Pressure Sensitive Tape"
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BILL 5
ROOF COVERINGS ETC
For preambles refer to "Model Preambles for Trades"
PREAMBLES
SUPPLEMENTARY PREAMBLES
Descriptions of all roof coverings are deemed to include for all straight cutting
Straight cutting
The roof covering and cladding is to be carried out strictly in accordance with the manufacturer's instruction. On completion the roof covering and accessories are to be inspected by the Manufacturer who is to provide a 5 year guarantee against defective materials and faulty workmanship
The roof is to be guaranteed weather tight for a period of 5 years period, calculated from the handed over date of the completed project
Guarantee
PROFILED METAL SHEETING AND ACCESSORIES
41m2Roof covering with pitch not exceeding 25 degrees1
0,58mm "Brownbuilt Klip-lok 700" Z275 spelter embossed galvanised troughed sheet steel with "Global duro-coat" finish to one side in single lengths fixed to steel purlins or rails (purlins and rails elsewhere) and including 0,8mm embossed galvanised sheet steel accessories with "Global duro-coat" finish to one side
5mFK79 Sidewall flashing 408mm girth twice times bent and notched on site to suit roof profile
2
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12mFK78 Headwalll flashing 375mm girth twice times bent and notched on site to suit roof profile
3
17mSerrated closers to ridges, hips, valleys, headwalls, etc4
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Roof Coverings etc
Section No. 5
Bill No. 5
AmountPageNo
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COLLECTION
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207
206Total Brought Forward from Page No.
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BILL 6
STRUCTURAL STEELWORK
For preambles refer to "Model Preambles for Trades"
PREAMBLES
SUPPLEMENTARY PREAMBLES
Descriptions of bolts shall be deemed to include nuts and washers
Descriptions
Descriptions of L-shaped and U-shaped anchor bolts shall be deemed to include bending, threading, nuts and washers and embedding in concrete
Descriptions of expansion anchors and bolts and chemical anchors and bolts shall be deemed to include nuts, washers and mortices in brickwork or concrete
Descriptions of L-shaped and U-shaped anchor bolts shall be deemed to include bending, threading, nuts and washers and embedding in concrete. Where anchor bolts are described as embedded in sides or soffits of concrete it shall be deemed to include holes through formwork.
Descriptions of expansion anchors and bolts and chemical anchors and bolts shall be deemed to include nuts, washers and mortices in brickwork or concrete.
SPECIFICATION FOR STRUCTURAL STEELWORK
The Standardized Specification for Civil Engineering Construction of the South African Bureau of Standards shall apply throughout in respect of this contract in addition to the additions and saving the exceptions set out below.
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EQUIVALENCY OF STANDARDS
Wherever reference is made in the Contract to SANSstandards and/or code requirements to be met by thegoods and materials to be furnished, work performed ortested, the provisions of the latest edition or revision ofthe relevant SANS standards and codes in effect shallapply, unless otherwise stated in the Contract.Whenever reference is made to SANS standards andcodes, other authoritative standards and codes thatensure an equal or higher quality than the relevantSANS standards and codes, will be accepted subject tothe Project Engineer’s prior review and written consent.Differences between the standards specified and theproposed alternative standards shall be fully describedin writing by the Tenderer/Contractor and submitted tothe Project Engineer at least twenty eight days prior tothe date when the Contractor/Tenderer desires theProject Engineer’s consent. In the event that the ProjectEngineer determines that such deviations are not of ahigh enough or better standard, the Tenderer/Contractorshall comply with the specified document.
A copy of the said specification shall be furnished by theContractor and shall be kept on the site.
A list of British specifications which are deemed to beequivalent to the relevant SANS specifications are listedat the end of this specification.
PROJECT SPECIFICATION
Should a requirement of the said standardizedspecification be inconsistent with a requirement of theproject specification, the latter shall take precedence.
1. APPLICABLE SPECIFICATIONS
SANS 1200 H: STRUCTURAL STEELWORKSANS 1200 HC: CORROSION PROTECTION
OF STRUCTURAL STEELWORK
THE SUBCLAUSES OF SANS 1200 H ARE AMENDED AS FOLLOWS
2.1 Subclause 3: Structural steel
The steel shall be Grade 350W for hot rolled steel sections (I, H, C, L). All other
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rolled steel sections (I, H, C, L). All other members shall carry the Grade 300W steel symbol to identify steel grade prior to manufacturing.
The thickness specified of a checker (“vastrap”) floor plate, is the under-pattern thickness.
2.2 Subclause 5.1 and subsubclause 5.1.2: Contractor provides shop details
The contractor shall furnish the engineer with shop-detail drawings within two weeks of having received the design drawings. Workshop drawings shall be drawn in Stru-Cad. The engineer will check the drawings for conformity with design requirements andwill return the drawings with additions and corrections, if any, within one week of having received them. Detailed checking of shop details for dimensional accuracy and installation fit, will not be done by the engineer.
2.3 Subsubclause 5.2.3: Cutting
The edges of flame-cut plates shall be ground smooth.
2.4 Subsubclause 5.6.1: Grouting responsibility
Grouting shall be done by the Main contractor.
2.5 Subsubclause 5.3.4: Welding
2.5.1 The applicable welding code for (a) All welders shall be coded
welders. (b)(d) The Engineer may at his
discretion identify welds for non-destructive
(e) No staggered or intermittent welding is permitted.
(f) No welding on site is permitted unless approved by the engineer. Any site welder and site welding procedure will
(h) The Contractor shall submit for
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review an outline of the Quality Control
2.5.2 Weld testing
2.5.2.1 General
a. Personnel
performing non-
destructive testing
other than visual
shall be qualified
in accordance
with the
stipulations of the
code.
b. Full penetration
butt welds are to
be radio
graphically tested
in accordance
with (2.5.2.2)
below). A
minimum of 50%
of full penetration
welds shall be
tested. If more
than 5% of the
examined welds
show
unsatisfactory
results, then
additional
examinations
covering all welds
shall be
performed.
2.5.2.2 Non-destructive examination
a. Non-destructive
procedures,
techniques and
acceptance
criteria shall be as
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required by AWS
D1.1.
b. All non-
destructive
examination shall
be in accordance
with written
procedures. The
Engineer shall
have the right to
examine and
approve the
written
procedures.
c. Full penetration
but welds shall be
radio graphically
tested or
ultrasonically
tested to the
requirements of
AWS D1.1.
d. Ultrasonic and
radiographic
examinations
shall not be made
within the period
of 24 hours after
completion of
welding.
e. Cost of
examination
listed under
to be borne
by the
Contractor.
f. All costs (time,
travelling, tests)
incurred by non-
destructive
examinations due
to non-
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conformance of
specifications and
due to any latent
defects in material
and welding shall
be borne by the
Contractor.
g. Fillet welds will be
inspected and
tested to AWS
D1.1 at the
discretion of the
Engineer.
h. Certificates of
non-destructive
testing shall be
submitted to the
Engineer.
Subsubclause 8.3.6: Measurement of andpayment for protective coating
Surface preparation, priming, shop and sitepainting shall be measured in m² of surfacetreated.
2.7 Subclause 7.1: Test certificates
Test certificates pertaining to the steel to beused shall be submitted to the engineer bythe contractor before fabricationcommences.
The engineer reserves the right to inspectall structural steel in the workshop before itis delivered to the site.
2.8 Subsubclause 6.2.2: Other tolerances
Degree of accuracy II shall apply unlessindicated otherwise elsewhere.
ADDITIONAL CLAUSES
3.1 Protective treatment and painting
3.1.1 General
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3.1.1.1 All paint shall be delivered at the workshop as well as on the site in the original containers that display the manufacturer’s name and trademark as well as the SABS mark. The engineer may, at his discretion, prescribe the manufacturer and the type of paint.
The coating system shall be from one manufacturer only. The paint manufacturer’s instructions shall be strictly adhered to.
3.1.1.2 Surfaces in contact with each other after assembly or erection shall receive the primer beforehand, except for faying surfaces for friction-grip fasteners.
3.1.1.3 The application of the final coats of paint before erection will be permitted by the engineer only in special circumstances or where specified elsewhere.
3.1.1.4 After erection of the steelwork, the specified paint system shall be reinstated in all areas where it has been damaged. All fasteners shall also be treated in accordance with the specified paint system.
3.1.1.5 No painting on the site shall be done in inclement weather or when humidity or frost is
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liable to cause wet or damp conditions on the surface to be painted.
3.1.1.6 No painting shall be done
if the temperature fallsbelow 7° C.
3.1.1.7 Welded seams shall be thoroughly steel-brushed before painting. Permission shall be obtained from the engineer before slag residue may be neutralized with acids or alkalis.
3.1.2 Surface preparation in the workshop
SIS 05 59 00 or ISO 8501 shall apply and shall be referred to in respect of this clause.
3.1.2.1 Manual scraping and wire brushing. This treatment shall normally be applied in all circumstances except if and where blast cleaning is specified.
- Prior to treatment, the steel surface shall be cleaned of dirt and grease
- Heavier layers of rust shall be removed by chipping
- All loose mill scale, rust and foreign matter shall be removed by very thorough scraping, wire-brushing, machine-brushing, grinding, etc
- Finally the surface
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shall be cleaned by vacuum cleaner, with clean dry compressed air, or with a clean brush
- The surface shall have a pronounced metallic sheen with an appearance equal to or better than that shown on the prints designated ST 3 in SIS 05 59 00 or ISO 8501
3.1.2.2 Blast-cleaning
This treatment may be used but is not obligatory unless so specified hereinafter. If blast cleaning is preferred to normal scraping and wire brushing, the final surface shall be equal to or better than that specified in subsubclause 3.1.2.1.
Paint system
The paint system shall be applied in accordance with the specifications given in table 3.1 below. Application may be by brush, roller or sprayed. Red lead may not be used.
All structural steel which is not visible, eg purlins, rafters and trusses, shall receive only the primer coat. All visible steel shall receive the full appropriate paint system treatment.
In all cases the manufacturer’s specification for any paint product must be followed.
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Paint system for newly galvanized surfaces
3.2.1 Recommended surface preparation:
- Degrease with Plascon Aquasole Degreaser GR 1 or similar approved. Any cement or foreign material must also be removed from the metal surface.
- Rinse with clean running water while protecting the floors and walls.
- Wash with Galvanised Iron Cleaner GIC 1 by Plascon, or similar approved.
- Rinse with clean running water and allow to dry. Protect the floors and walls.
3.2.2 Apply one coat of Plascon Aquafast Etch Primer no EMS 18 or similar approved to a total dry thickness of 35 micron. Must be overcoated within 72 hours to avoid excessive hardening.
3.2.3 One final coat as specified in table 3.1.
HOT DIPPED GALVANIZING (See also subclause 5.9in SANS 1200H)
Steelwork described as "galvanised" shall begalvanised after manufacturing and beforedelivering to site by means of the hot dippedprocess complying with the minimumrequirements of SANS 121 (SABS ISO 1461),1999 latest amendment. Structural steelmembers shall be given an 85 micron thickgalvanised coating or such other thickness asmay be specified in accordance with SANS 121(SABS ISO 1461) (Table 1.)Damaged surfaces must be thoroughly cleanedand if welding has been carried out all slag mustbe removed preferably by the use of a chiselhammer.
Before galvanising all surfaces of the metalworkshall be thoroughly cleaned of all scale and rust
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by shot-blasting in accordance with SANS 10064or by pickling and then fluxed ready forgalvanising.
The zinc coating shall be even and continuousover all surfaces, free of bare spots, dull or roughpatches, blisters or other imperfections. The zinccoating shall show no signs of peeling and shallbe uniform in thickness.
All M8 and greater bolts, nuts, screws and otherthreaded components, shall be hot-dip galvanisedto SANS 121 (SABS ISO 1461) (previouslyarticles type C.)
Repairing of damaged coatings
Plant repairs
Should any black spots or uncoated areas greaterthan 5 mm2 (individual) or 25 mm2 (collective) perm2 or per m run be present after galvanizing, thecoating shall be repaired. This is to be carried outusing abrasive blasting following by zinc metalspray. The zinc metal spray shall be applied atleast 25 % thicker than that specified and shalloverlap the damaged area by 20-25 mm. Thefinished coating shall be wire brushed to removeany excess metal spray.
Hot patch soldering is an alternative at the plantbut is seldomly used, as the method needs to beconducted while the product is still hot beforequenching.
Site Repairs
Zinc metal spray as set out above.
The recommended alternative is to use a zinc richpaint provided it has at leas 90 % zinc in the dryfilm, by mass. The paint should be a zinc richepoxy in conformance with SANS 926. A singlepack zinc rich paint such as Plascon’s “PlascozincPolygalv Primer” or equal can be applied.
5. LIST OF SPECIFICATIONS AND CODES
STRUCTURES
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Standard Specification British Standardsfor Civil Engineering EquivalentsConstuction
SANS 1200H: Structural BS 4, BS 449, BS 5531,
steel DD ENV 1993
SANS 1200HC: Corrosion BS 5493 protection of structural steel
AWS D1.1: Welding of steel BS 709, BS 4360, and procedures BS 5135
SANS 912 : Calcium plumbate BS 3698 primer
SANS 630: Decorative high BS 6150, BS 6952 gloss enamel paint for interior and exterior use
SANS 684: Structural steel BS 5493 paint
SANS 10243: The design, BS 5268manufacturer and erection of timber trusses
SANS 10160: The general BS 6399procedures and loadingsto be adopted for the design of buildings
SANS 121: Hot dipped galvanised BS 729, BS 1706coatings on fabricated iron and steel articles -Specifications and testmethods
SANS 10400: The application DD ENV 1992-1-1of the National BuildingRegulations
SANS 10155: Permissible BS 5964accuracy in building
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STEEL COLUMNS AND BEAMS
0.05t75 x 75mm x 2,5mm Thick SHS columns1
Welded columns in single lengths with flat section base, top, bearer and connection plates bolted to concrete
0.23tIPE120 beams2
Welded beams in single lengths with flat section bearer and connection plates bolted to concrete
0.15tIPE180 beams3
48NoM12 bolts4
Bolts to columns, beams, etc
30NoM12 chemical expansion bolt5
PURLINS, GIRTS, BRACING, ETC
0.47tLipped channel section purlins6
Purlins and girts bolted to steel
116NoM12 bolts7
Bolts to columns, beams, etc
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Structural Steelwork
Section No. 5
Bill No. 6
AmountPageNo
SECTION 5 - GAS STORE 4
COLLECTION
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221
220
219
218
217
216
215
214
213
212
211
210
209Total Brought Forward from Page No.
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BILL 7
PAINTWORK
For preambles refer to "Model Preambles for Trades"
PREAMBLES
SUPPLEMENTARY PREAMBLES
Description of paintwork shall be deemed to include for the preparation of surfaces, including filling, stopping, sanding, priming, of nail heads and screws and for all cutting in
Descriptions
All painting shall be done in accordance with "PLASCON" specifications and rates must include for all primers undercoats and final coats. A representative from "Plascon" will be expected to inspect/test work in progress
Paint specification
PAINTWORK ETC TO NEW WORK
ON STRUCTURAL STEELWORK
56m2On columns, beams, etc 1
Remove all harmful deposits on surface of steel such as oil, grease, chemical deposits, clay, bitumen or mud, brush steel with rotary wire brush to SIS 05 59 00, apply one coat (40 micron ±5 micron) sinc chromate primer in accordance with SABS 679, one coat (40 micron minimum) multi purpose unercoat in accordance with SABS 681 (type II paint) and two coats "Plascon" alkyd enamel paint (40 micron) in accordance with SABS 630 (type I paint)
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PaintworkBill No. 7SECTION 5 - GAS STORE 4Section No. 5
Carried Forward to Summary of Section No. 5 R
Science Campus Gas Installation
UNISA
B2051 REV 1
SECTION 5 - GAS STORE 4
SECTION SUMMARY - SECTION 5 - GAS STORE 4
BillNo
PageNo
Amount
Section No. 5
193Earthworks (Provisional)1
201Concrete Formwork & Reinforcement2
204Masonry3
205Waterproofing4
208Roof Coverings etc5
222Structural Steelwork6
223Paintwork7
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SECTION 5 - GAS STORE 4Section No. 5
Carried to Final Summary R
AmountItemNo
Quantity Rate
Science Campus Gas Installation
UNISA
B2051 REV 1
BILL 1
ALTERATIONS (PROVISIONAL)
TEMPORARY BARRIERS, SCREENS, ETC
60m
Drywall barrier 2600mm high formed of galvanised steel channel section rails and studs covered on one side with 12,7mm gypsum board panels and finished with two coats interior quality PVA emulsion paint on one side including corners, ends, etc varying between 15m and 25m
1
Temporary barriers, screens, etc including removal
6NoExtra over drywall partitioning for double door 1511 x 2032mm high including lockable lockset
2
6NoExtra over drywall partitioning for single door 813 x 2032mm high including lockable lockset
3
NOTE: Where descriptions /items refer to rooms/areas, etc the tenderer must visit and asquint himself with the nature of work referred to and price items accordingly. No claim will be entertained due to brevity of description.
REMOVAL OF EXISTING WORK
NOTE: The item "Rubble Removal" is an "extra over item" for additional rubble not covered under items such as "....and removing one brick wall from site", etc
The term "removing" shall deem to include for loading, removing from site, cleaning and taking demolished item/rubble to a site located by Contractor
1,568m2Acoustic tile suspended ceilings including suspension grid, hangers, etc
4
Taking down and removing roofs, floors, panelling, ceilings, partitions, etc for installation of services (by others)
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AlterationsBill No. 1SECTION 6 - BUILDER'S WORK FOR SERVICE INSTALSection No. 6
Carried to Collection R
Science Campus Gas Installation
UNISA
B2051 REV 1
OPENINGS THROUGH EXISTING WALLS ETC
11NoOpening for 50mm diameter electrical conduit through half brick wall
5
Breaking out for and forming plain openings through brick walls including necessary precast concrete lintels and making good plaster on both sides and into reveals and with concrete thresholds with steel trowelled finish (making good paintwork elsewhere)
11NoOpening for 50mm diameter electrical conduit through one brick wall
6
27NoOpening for and installation of gas detection sleeve (supplied by others) through one brick wall
7
10NoOpening 100 x 100mm high through half brick wall for trunking (by others)
8
40NoOpening 100 x 100mm high through one brick wall for trunking (by others)
9
Note: Galvanised chicken wire to be deemed to be allowed for to reinforcing plaster over chase work, etc. in brick walls
MAKING GOOD OF FINISHES ETC
135m2Walls in patches where services have been chased in and installed in existing brickwork (by others)
10
Making good internal cement plaster
SUNDRIES
ItemRubble removal from site11
Rubble Removal
50,000.00Item
Allow the amount of R50,000.00 (Fifty Thousand Rand) for work or cost which cannot entirely foreseen, defined or detailed
12
Budgetary allowance
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AlterationsBill No. 1SECTION 6 - BUILDER'S WORK FOR SERVICE INSTALSection No. 6
Carried to Collection R
Science Campus Gas Installation
UNISA
B2051 REV 1
314m2
Allow for a working platform to be erected at 2400mm high, over existing laboratory equipment within existing building for protection of existing installations and for removal and re-instatement of existing ceilings
13
Platform
150,000.00Item
Allow the amount of R150,000.00 (One Hundred and Fifty Thousand Rand) for additional hoarding to labs for protection / isolation of equipment
14
Budgetary allowance
380,000.00Item
Allow the amount of R380,000.00 (Three Hundred and Eighty Thousand Rand) for additional builder's work to services installations
15
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AlterationsBill No. 1SECTION 6 - BUILDER'S WORK FOR SERVICE INSTALSection No. 6
Carried to Collection R
Alterations
Section No. 6
Bill No. 1
AmountPageNo
SECTION 6 - BUILDER'S WORK FOR SERVICE INSTALLATIONS
COLLECTION
Science Campus Gas Installation
UNISA
B2051 REV 1
227
226
225Total Brought Forward from Page No.
-228-
AlterationsBill No. 1SECTION 6 - BUILDER'S WORK FOR SERVICE INSTALSection No. 6
Carried Forward to Summary of Section No. 6 R
AmountItemNo
Quantity Rate
Science Campus Gas Installation
UNISA
B2051 REV 1
BILL 2
CEILINGS, PARTITIONS AND ACCESS FLOORING
SUSPENDED CEILINGS
157m2Ceilings not exceeding 1m below concrete soffits1
600 x 600 x 15mm Thick "Owacoustic Futura 60" white pre-painted mineral wool ceiling tiles with square edge and including exposed grid "Owa Construct S3" pre-painted T24 system including main tees, cross tees, hold-down clips, wedges etc. where ceilings removed (elsewhere)
63NoExtra over ceiling for opening for 100mm diameter down lighter (Provisional)
2
2NoExtra over ceilings for hinged opening 1 200 x 1 200mm for gas detection access panel
3
3NoExtra over ceilings for opening 600 x 600mm for HVAC return air grille (supplied by others) installed
4
1,098m2Ceilings not exceeding 1m below concrete soffits5
1200 x 600 x 15mm Thick "Owacoustic Futura 60" mineral wool ceiling boards with square edge and white painted finish on and including suspended "Gyproc" pre-painted exposed T24 white UV resistant vinyl coated exposed tee system including main and cross tees, necessary hangers, grids, etc where ceilings removed (elsewhere)
439NoExtra over ceiling for opening for 100mm diameter down lighter (Provisional)
6
11NoExtra over ceilings for hinged opening 1 200 x 1 200mm for gas detection access panel
7
18NoExtra over ceilings for opening 600 x 600mm for HVAC return air grille (supplied by others) installed
8
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Ceilings, Partitions & Access FlooringBill No. 2SECTION 6 - BUILDER'S WORK FOR SERVICE INSTALSection No. 6
Carried to Collection R
Science Campus Gas Installation
UNISA
B2051 REV 1
314m2
Ceiling boards screw fixed to and including a "Gyproc" suspension screw up grid system suspended not exceeding 1m below concrete roofs
9
9.5mm "Gyproc Rhinoceil" gypsum plasterboard with "Rhinotape" over all joints and the whole finished with gypsum skim plaster trowelled to a smooth polished surface to the thickness recommended by the manufacturer
125NoExtra over ceiling for opening for 150mm diameter downlighter (Provisional)
10
3NoExtra over ceilings for hinged opening 1 200 x 1 200mm for gas detection access panel
11
5NoExtra over ceilings for opening 600 x 600mm for HVAC return air grille (supplied by others) installed
12
NOTE: The price for cornices must include for all cornices
to painted wall to be sealed with DEN BRAVEN Acrylic-W sealant and all cornices to tiled wall to be sealed with DEN BRAVEN Silicone-NO
neutral cure sealant
___________________
"Donn" cornices to suspended ceilings
738m"Donn LSM25" Z profile pre-painted cornices 13
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Ceilings, Partitions & Access FlooringBill No. 2SECTION 6 - BUILDER'S WORK FOR SERVICE INSTALSection No. 6
Carried to Collection R
Ceilings, Partitions & Access Flooring
Section No. 6
Bill No. 2
AmountPageNo
SECTION 6 - BUILDER'S WORK FOR SERVICE INSTALLATIONS
COLLECTION
Science Campus Gas Installation
UNISA
B2051 REV 1
230
229Total Brought Forward from Page No.
-231-
Ceilings, Partitions & Access FlooringBill No. 2SECTION 6 - BUILDER'S WORK FOR SERVICE INSTALSection No. 6
Carried Forward to Summary of Section No. 6 R
AmountItemNo
Quantity Rate
Science Campus Gas Installation
UNISA
B2051 REV 1
BILL 3
STRUCTURAL STEELWORK
1No
The following in HVAC Roof Top Units Support Structure Type FA01 2m high overall: IPE 140 frame structure with a long direction (L) of two (2) 3210mm with beams spacing at 1 270mm and short direction (B) of four (4) 1270mm with 1 070 beam spacing. Frame is supported by eight (8), 75 x 75 x 3.5mm SHS legs each with 325 x 325 x 12mm baseplate which is connected by eight (8) welded, 125 x 150 x12mm gusset plates on each baseplate. Baseplates to be fixed with four (4) M12 chemical anchors through four (4) 14mm diameter holes and 20mm thick non-shrink grout. Each leg to receive two (2) 30 x 30 x 3mm angle section support braces connected from the leg to the frame.The frame is to receive "Vitagrid VE" grating over the full 3 210 x 1 270mm surface area, with 30 x 3mm bearer bars.Refer to drawings attached to the back of this Bills of Quantities.
1
HVAC SUPPORT STRUCTURES
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Structural SteelBill No. 3SECTION 6 - BUILDER'S WORK FOR SERVICE INSTALSection No. 6
Carried to Collection R
Science Campus Gas Installation
UNISA
B2051 REV 1
1No
The following in HVAC Roof Top Units Support Structure Type FA02 2m high overall: IPE 140 frame structure with a long direction (L) of two (2) 2130mm with beams spacing at 1 110mm and short direction (B) of three (3) 1110mm with 1 065 beam spacing. Frame is supported by six (6), 75 x 75 x 3.5mm SHS legs each with 275 x 275 x 12mm baseplate which is connected by eight (8) welded, 125 x 150 x12mm gusset plates on each baseplate. Baseplates to be fixed with four (4) M12 chemical anchors through four (4) 14mm diameter holes and 20mm thick non-shrink grout. Each leg to receive two (2) 30 x 30 x 3mm angle section support braces connected from the leg to the frame.The frame is to receive "Vitagrid VE" grating over the full 2130 x 1 110mm surface area, with 30 x 3mm bearer bars.Refer to drawings attached to the back of this Bills of Quantities.
2
1No
The following in HVAC Roof Top Units Support Structure Type FA03 2m high overall: IPE 140 frame structure with a long direction (L) of two (2) 3045mm with beams spacing at 1 125mm and short direction (B) of four (4) 1125mm with 1 015 beam spacing. Frame is supported by eight (8), 75 x 75 x 3.5mm SHS legs each with 350 x 350 x 12mm baseplate which is connected by eight (8) welded, 125 x 150 x12mm gusset plates on each baseplate. Baseplates to be fixed with four (4) M12 chemical anchors through four (4) 14mm diameter holes and 20mm thick non-shrink grout. Each leg to receive two (2) 30 x 30 x 3mm angle section support braces connected from the leg to the frame.The frame is to receive "Vitagrid VE" grating over the full 3045 x 1125mm surface area, with 30 x 3mm bearer bars.Refer to drawings attached to the back of this Bills of Quantities.
3
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Structural SteelBill No. 3SECTION 6 - BUILDER'S WORK FOR SERVICE INSTALSection No. 6
Carried to Collection R
Science Campus Gas Installation
UNISA
B2051 REV 1
1No
The following in HVAC Roof Top Units Support Structure Type FA04 1m high overall: IPE 140 frame structure with a long direction (L) of three (3) 3570mm with beams spacing at 750mm and short direction (B) of four (4) 1500mm with 1190mm beam spacing. Frame is supported by eight (8), 75 x 75 x 3.5mm SHS legs each with 325 x 325 x 12mm baseplate which is connected by eight (8) welded, 125 x 150 x12mm gusset plates on each baseplate. Baseplates to be fixed with four (4) M12 chemical anchors through four (4) 14mm diameter holes and 20mm thick non-shrink grout. Each leg to receive two (2) 30 x 30 x 3mm angle section support braces connected from the leg to the frame.The frame is to receive "Vitagrid VE" grating over the full 3570 x 1500mm surface area, with 30 x 3mm bearer bars.Refer to drawings attached to the back of this Bills of Quantities.
4
1No
The following in HVAC Roof Top Units Support Structure Type FA05 1m high overall: IPE 140 frame structure with a long direction (L) of two (2) 3480mm with beams spacing at 1075mm and short direction (B) of four (4) 1075mm with 1160mm beam spacing. Frame is supported by eight (8), 75 x 75 x 3.5mm SHS legs each with 350 x 350 x 12mm baseplate which is connected by eight (8) welded, 125 x 150 x12mm gusset plates on each baseplate. Baseplates to be fixed with four (4) M12 chemical anchors through four (4) 14mm diameter holes and 20mm thick non-shrink grout. Each leg to receive two (2) 30 x 30 x 3mm angle section support braces connected from the leg to the frame.The frame is to receive "Vitagrid VE" grating over the full 3480 x 1075mm surface area, with 30 x 3mm bearer bars.Refer to drawings attached to the back of this Bills of Quantities.
5
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Structural SteelBill No. 3SECTION 6 - BUILDER'S WORK FOR SERVICE INSTALSection No. 6
Carried to Collection R
Science Campus Gas Installation
UNISA
B2051 REV 1
1No
The following in HVAC Roof Top Units Support Structure Type FA06 1m high overall: IPE 140 frame structure with a long direction (L) of two (2) 2540mm with beams spacing at 1000mm and short direction (B) of three (3) 1000mm with 1270mm beam spacing. Frame is supported by six (6), 75 x 75 x 3.5mm SHS legs each with 325 x 325 x 12mm baseplate which is connected by eight (8) welded, 125 x 150 x12mm gusset plates on each baseplate. Baseplates to be fixed with four (4) M12 chemical anchors through four (4) 14mm diameter holes and 20mm thick non-shrink grout. Each leg to receive two (2) 30 x 30 x 3mm angle section support braces connected from the leg to the frame.The frame is to receive "Vitagrid VE" grating over the full 2540 x 1000mm surface area, with 30 x 3mm bearer bars.Refer to drawings attached to the back of this Bills of Quantities.
6
1No
The following in HVAC Roof Top Units Support Structure Type FA07:PFC 140 and IPE 140 frame structure with a long PFC 140 direction of two (2) 3600mm with beam spacing 1100mm and short direction IPE 140 of four (4) 1100mm with 1200mm beam spacing. The frame is to be fixed to existing concrete structure by five (5) M16 chemical anchors at 800mm centresFrame is supported by four (4), 63.5 x 3.5mm CHS legs each with 165 x 100 x 12mm endplate.End plates to be fixed with two (2) M16 chemical anchors through two (2) 18mm diameter holes.The Structure is to receive hand rails to match existing along the outer edge.The frame is to receive "Vitagrid VE" grating over the full 3600 x 1100mm surface area, with 30 x 3mm bearer bars.Refer to drawings attached to the back of this Bills of Quantities.
7
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Structural SteelBill No. 3SECTION 6 - BUILDER'S WORK FOR SERVICE INSTALSection No. 6
Carried to Collection R
Science Campus Gas Installation
UNISA
B2051 REV 1
1No
The following in HVAC Roof Top Units Support Structure Type FA08 2m high overall: IPE 140 frame structure with a long direction (L) of three (3) 1770mm with beams spacing at 840mm and short direction (B) of three (3) 1680mm with 885mm beam spacing. Frame is supported by six (6), 75 x 75 x 3.5mm SHS legs each with 300 x 300 x 12mm baseplate which is connected by eight (8) welded, 125 x 150 x12mm gusset plates on each baseplate. Baseplates to be fixed with four (4) M12 chemical anchors through four (4) 14mm diameter holes and 20mm thick non-shrink grout. Each leg to receive two (2) 30 x 30 x 3mm angle section support braces connected from the leg to the frame.The frame is to receive "Vitagrid VE" grating over the full 1770 x 1680mm surface area, with 30 x 3mm bearer bars.Refer to drawings attached to the back of this Bills of Quantities.
8
1No
The following in HVAC Roof Top Units Support Structure Type FA09:PFC 140 and IPE 140 frame structure with a long PFC 140 direction of two (2) 2400mm with beam spacing of 1100mm and short direction IPE 140 of three (3) 1100mm with 1200mm beam spacing. The frame is to be fixed to existing concrete structure by four (4) M16 chemical anchors at 750mm centresFrame is supported by three (3), 63.5 x 3.5mm CHS legs each with 165 x 100 x 12mm endplate.End plates to be fixed with two (2) M16 chemical anchors through two (2) 18mm diameter holes.The Structure is to receive hand rails to match existing along the outer edge.The frame is to receive "Vitagrid VE" grating over the full 2400 x 1100mm surface area, with 30 x 3mm bearer bars.Refer to drawings attached to the back of this Bills of Quantities.
9
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Structural SteelBill No. 3SECTION 6 - BUILDER'S WORK FOR SERVICE INSTALSection No. 6
Carried to Collection R
Science Campus Gas Installation
UNISA
B2051 REV 1
1No
The following in HVAC Roof Top Units Support Structure Type AHU-15 2m high overall: IPE 140 frame structure with a long direction (L) of three (3) 5575mm with beams spacing at 875mm and short direction (B) of six (6) 1750mm with 1115mm beam spacing. Frame is supported by fourteen (14), 75 x 75 x 3.5mm SHS legs each with 425 x 425 x 12mm baseplate which is connected by eight (8) welded, 125 x 150 x12mm gusset plates on each baseplate. Baseplates to be fixed with four (4) M12 chemical anchors through four (4) 14mm diameter holes and 20mm thick non-shrink grout. Each leg to receive two (2) 30 x 30 x 3mm angle section support braces connected from the leg to the frame.The frame is to receive "Vitagrid VE" grating over the full 5575 x 1750mm surface area, with 30 x 3mm bearer bars.Refer to drawings attached to the back of this Bills of Quantities.
10
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Structural SteelBill No. 3SECTION 6 - BUILDER'S WORK FOR SERVICE INSTALSection No. 6
Carried to Collection R
Structural Steel
Section No. 6
Bill No. 3
AmountPageNo
SECTION 6 - BUILDER'S WORK FOR SERVICE INSTALLATIONS
COLLECTION
Science Campus Gas Installation
UNISA
B2051 REV 1
237
236
235
234
233
232Total Brought Forward from Page No.
-238-
Structural SteelBill No. 3SECTION 6 - BUILDER'S WORK FOR SERVICE INSTALSection No. 6
Carried Forward to Summary of Section No. 6 R
AmountItemNo
Quantity Rate
Science Campus Gas Installation
UNISA
B2051 REV 1
BILL 4
SLEEVES
NOTE: Tenderers are referred to the engineers drawings for tender purposes (refer to drawings at the back of these bills of quantities)
DUCTS FOR ELECTRICAL CABLES
7m110mm PVC Pipes fixed to concrete soffits1
uPVC Pipes
-239-
SleevesBill No. 4SECTION 6 - BUILDER'S WORK FOR SERVICE INSTALSection No. 6
Carried Forward to Summary of Section No. 6 R
AmountItemNo
Quantity Rate
Science Campus Gas Installation
UNISA
B2051 REV 1
BILL 5
PAINTWORK
PAINTWORK ETC TO PREVIOUSLY PAINTED WORK
ON FLOATED PLASTER
2,132m2On internal walls1
Strip, wash down with soap solution, fill where necessary with suitable stopping or patching plaster, spot prime and rub down, one undercoat and two coats Plascon Double Velvet paint in colours which have a value of 7 or less on Munsell system in accordance with SABS 1091
PAINTWORK ETC TO NEW WORK
ON FLOATED PLASTER
268m2On internal walls 2
One coat "Plascon Professional Gypsum & plaster primer" and two coats "Plascon PVA" paint to specification in colours which have a value of 7 or less on the Munsell system in accordance with SABS 1091
-240-
PaintworkBill No. 5SECTION 6 - BUILDER'S WORK FOR SERVICE INSTALSection No. 6
Carried Forward to Summary of Section No. 6 R
AmountItemNo
Quantity Rate
Science Campus Gas Installation
UNISA
B2051 REV 1
BILL 6
NOTE: Tenderers are referred to the engineers drawings for tender purposes (refer to drawings at the back of these bills of quantities)
EXTERNAL WORKS
DUCTS FOR ELECTRICAL CABLES ETC
47mSet of two 110mm pipes laid in and including trenches not exceeding 1m deep
1
uPVC Heavy duty (SDR34) pipes
2No110mm Slow bend sleeves2
Extra over uPVC pipes for fittings, etc
4No110mm Bend 3
2No110mm Tee4
7NoManhole size 600 x 600mm internally5
Sumps, catchpits, inspection chambers, etc (gratings and covers elsewhere)
7NoCover and frame for electrical manhole 6
Gratings, covers, etc
3m3Extra over excavation in earth for pipe trenches, chambers, etc for excavation in soft rock
7
Sundries
1m3Extra over excavation in earth for pipe trenches, chambers, etc for excavation in hard rock
8
94mSupply and fit draw wires 9
THE FOLLOWING FOR ELECTRICAL SLEEVES AND DIESEL LINE
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External WorksBill No. 6SECTION 6 - BUILDER'S WORK FOR SERVICE INSTALSection No. 6
Carried to Collection R
Science Campus Gas Installation
UNISA
B2051 REV 1
302m280mm Thick brick paving with mortar joints10
Taking up and removing paving etc.
50m3Trenches11
Excavation in earth not exceeding 2m deep
3m3Soft rock12
Extra over trench and hole excavations in earth for excavation in
2m3Hard rock13
50m3Surplus material from excavations and/or stock piles on site to a dumping site to be located by the contractor
14
Extra over all excavations for carting away
130m2Sides of trench and hole excavations exceeding 1,5m deep
15
Risk of collapse of excavations
ItemKeeping excavations free of all water other than subterranean water
16
Keeping excavations free of water
45m3Under floors, steps, pavings, etc17
Earth filling of G5 supplied by the contractor stabilized with 3% OPC cement (C4 material) compacted to 95% Mod AASHTO density
45m3Under floors, steps, pavings, etc18
Earth filling (Type G6) supplied by the contractor compacted to 95% Mod AASHTO density
302m2
Compaction of ground surface under floors etc including scarifying for a depth of 150mm, breaking down oversize material, adding suitable material where necessary and compacting to 93% Mod AASHTO density
19
Compaction of surfaces
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External WorksBill No. 6SECTION 6 - BUILDER'S WORK FOR SERVICE INSTALSection No. 6
Carried to Collection R
Science Campus Gas Installation
UNISA
B2051 REV 1
302m2Under road and parking areas, paving etc20
Approved weedkiller
60mm Provide the PC amount of R1500.00/1000 delivered to site for road stone including 20mm thick sand bed in patchwork
302m2Paving to road and parking areas to falls21
Paving is to be laid on and including 20mm (thickness after final compaction) clean river sand (preparation of ground or filling elsewhere)
120m600 x 300mm high Precast concrete culvert 22
Precast concrete finished smooth on exposed surfaces including bedding, jointing and pointing
13m3Strip footings23
30MPa/19mm concrete
1.041tBars of various diameters24
Steel reinforcement to structural concrete work
49m110mm pipe laid in and including trenches not exceeding 1m deep
25
uPVC Heavy duty (SDR34) pipes
120mSet of twelve 110mm pipes laid in and including trenches not exceeding 1m deep
26
98No110mm Slow bend sleeves27
Extra over uPVC pipes for fittings, etc
51No110mm Bend 28
6NoElectrical manhole size 1 000 x 1 000mm internally29
Sumps, catchpits, inspection chambers, etc (gratings and covers elsewhere)
6NoManhole size 600 x 600mm internally30
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External WorksBill No. 6SECTION 6 - BUILDER'S WORK FOR SERVICE INSTALSection No. 6
Carried to Collection R
Science Campus Gas Installation
UNISA
B2051 REV 1
6NoCover and frame for 1 000 x 1 000mm manhole 31
Gratings, covers, etc
6NoCover and frame for 600 x 600mm manhole 32
1,494mSupply and fit draw wires 33
Sundries
49mUnreinforced concrete encasing to 100mm diameter horizontal sleeves
34
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External WorksBill No. 6SECTION 6 - BUILDER'S WORK FOR SERVICE INSTALSection No. 6
Carried to Collection R
External Works
Section No. 6
Bill No. 6
AmountPageNo
SECTION 6 - BUILDER'S WORK FOR SERVICE INSTALLATIONS
COLLECTION
Science Campus Gas Installation
UNISA
B2051 REV 1
244
243
242
241Total Brought Forward from Page No.
-245-
External WorksBill No. 6SECTION 6 - BUILDER'S WORK FOR SERVICE INSTALSection No. 6
Carried Forward to Summary of Section No. 6 R
Science Campus Gas Installation
UNISA
B2051 REV 1
SECTION 6 - BUILDER'S WORK FOR SERVICE INSTALLATIONS
SECTION SUMMARY - SECTION 6 - BUILDER'S WORK FOR SERVICE INSTA
BillNo
PageNo
Amount
Section No. 6
228Alterations1
231Ceilings, Partitions & Access Flooring2
238Structural Steel3
239Sleeves4
240Paintwork5
245External Works6
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SECTION 6 - BUILDER'S WORK FOR SERVICE INSTALSection No. 6
Carried to Final Summary R
AmountItemNo
Quantity Rate
Science Campus Gas Installation
UNISA
B2051 REV 1
BILL 1
INTERNAL SIGNAGE
Signage: Clear perspex name plate reverse engraved and enamelled in lettering 25mm high to suit, twice countersunk holed for and tap screwed to door with chromium plated dome headed self tapping screws
INTERNAL SIGNAGE
10NoE1 - Escape Route Right1
ABS plastic, tough, low cost rigid thermoplastic plastic with high impact strength. Photoluminescent (Glow in the Dark) Signs, 150x300mm-Internal Wall Mounted:
11NoE2 - Escape Route Left2
6NoE3 - Escape Route Down3
1NoE16 - Escape Route Right Down Stairs4
2NoE1-E2- Escape Route Left and Right5
ABS plastic, tough, low cost rigid thermoplastic plastic with high impact strength. Photoluminescent (Glow in the Dark) Signs, 150x300mm-Internal Hanging Double Sided:
2NoE3 - Escape Route Down6
3NoF4 - Fire Extinguisher, Hose and Arrow Down7
Chromadek is a metal sheet that has been galvanised (anti-rust) and coated with white paint, used specifically for outdoor safety signs. Photoluminescent (Glow in the Dark) Signs, 150x450mm-External Wall Mounted:
1NoF5 - Fire Extinguisher, Hose and Arrow Left8
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SignageBill No. 1SECTION 7 - SIGNAGESection No. 7
Carried to Collection R
Science Campus Gas Installation
UNISA
B2051 REV 1
35,000.00ItemAllow the amount of R35 000,00 (Thirty Five Thousand Rand) for internal signage
9
Budgetary Allowances
ItemProfit10
ItemAttendance11
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SignageBill No. 1SECTION 7 - SIGNAGESection No. 7
Carried to Collection R
Signage
Section No. 7
Bill No. 1
AmountPageNo
SECTION 7 - SIGNAGE
COLLECTION
Science Campus Gas Installation
UNISA
B2051 REV 1
248
247Total Brought Forward from Page No.
-249-
SignageBill No. 1SECTION 7 - SIGNAGESection No. 7
Carried to Final Summary R
Science Campus Gas Installation
UNISA
B2051 REV 1
PageNo
FINAL SUMMARY
SectionNo
Amount
43SECTION 1 - PRELIMINARIES1
98SECTION 2 - GAS STORE 12
145SECTION 3 - GAS STORE 23
189SECTION 4 - GAS STORE 34
224SECTION 5 - GAS STORE 45
246SECTION 6 - BUILDER'S WORK FOR SERVICE INSTALLATIONS
6
249SECTION 7 - SIGNAGE7
RSub Total
RVAT @ 15%
-250-
Carried to Form of Tender R