Upload
theresa-denice-fernandez
View
233
Download
0
Embed Size (px)
Citation preview
7/26/2019 Section 5 Concrete
1/205
7/26/2019 Section 5 Concrete
2/205
7/26/2019 Section 5 Concrete
3/205
7/26/2019 Section 5 Concrete
4/205
7/26/2019 Section 5 Concrete
5/205
7/26/2019 Section 5 Concrete
6/205
7/26/2019 Section 5 Concrete
7/205
7/26/2019 Section 5 Concrete
8/205
7/26/2019 Section 5 Concrete
9/205
7/26/2019 Section 5 Concrete
10/205
7/26/2019 Section 5 Concrete
11/205
7/26/2019 Section 5 Concrete
12/205
7/26/2019 Section 5 Concrete
13/205
7/26/2019 Section 5 Concrete
14/205
7/26/2019 Section 5 Concrete
15/205
7/26/2019 Section 5 Concrete
16/205
7/26/2019 Section 5 Concrete
17/205
7/26/2019 Section 5 Concrete
18/205
7/26/2019 Section 5 Concrete
19/205
7/26/2019 Section 5 Concrete
20/205
7/26/2019 Section 5 Concrete
21/205
7/26/2019 Section 5 Concrete
22/205
7/26/2019 Section 5 Concrete
23/205
7/26/2019 Section 5 Concrete
24/205
7/26/2019 Section 5 Concrete
25/205
7/26/2019 Section 5 Concrete
26/205
7/26/2019 Section 5 Concrete
27/205
7/26/2019 Section 5 Concrete
28/205
7/26/2019 Section 5 Concrete
29/205
7/26/2019 Section 5 Concrete
30/205
7/26/2019 Section 5 Concrete
31/205
7/26/2019 Section 5 Concrete
32/205
7/26/2019 Section 5 Concrete
33/205
7/26/2019 Section 5 Concrete
34/205
7/26/2019 Section 5 Concrete
35/205
7/26/2019 Section 5 Concrete
36/205
7/26/2019 Section 5 Concrete
37/205
7/26/2019 Section 5 Concrete
38/205
7/26/2019 Section 5 Concrete
39/205
7/26/2019 Section 5 Concrete
40/205
7/26/2019 Section 5 Concrete
41/205
7/26/2019 Section 5 Concrete
42/205
7/26/2019 Section 5 Concrete
43/205
7/26/2019 Section 5 Concrete
44/205
7/26/2019 Section 5 Concrete
45/205
7/26/2019 Section 5 Concrete
46/205
7/26/2019 Section 5 Concrete
47/205
7/26/2019 Section 5 Concrete
48/205
7/26/2019 Section 5 Concrete
49/205
7/26/2019 Section 5 Concrete
50/205
7/26/2019 Section 5 Concrete
51/205
7/26/2019 Section 5 Concrete
52/205
7/26/2019 Section 5 Concrete
53/205
7/26/2019 Section 5 Concrete
54/205
7/26/2019 Section 5 Concrete
55/205
7/26/2019 Section 5 Concrete
56/205
7/26/2019 Section 5 Concrete
57/205
7/26/2019 Section 5 Concrete
58/205
7/26/2019 Section 5 Concrete
59/205
7/26/2019 Section 5 Concrete
60/205
7/26/2019 Section 5 Concrete
61/205
7/26/2019 Section 5 Concrete
62/205
7/26/2019 Section 5 Concrete
63/205
7/26/2019 Section 5 Concrete
64/205
7/26/2019 Section 5 Concrete
65/205
7/26/2019 Section 5 Concrete
66/205
7/26/2019 Section 5 Concrete
67/205
7/26/2019 Section 5 Concrete
68/205
7/26/2019 Section 5 Concrete
69/205
7/26/2019 Section 5 Concrete
70/205
7/26/2019 Section 5 Concrete
71/205
7/26/2019 Section 5 Concrete
72/205
7/26/2019 Section 5 Concrete
73/205
7/26/2019 Section 5 Concrete
74/205
7/26/2019 Section 5 Concrete
75/205
7/26/2019 Section 5 Concrete
76/205
7/26/2019 Section 5 Concrete
77/205
7/26/2019 Section 5 Concrete
78/205
7/26/2019 Section 5 Concrete
79/205
7/26/2019 Section 5 Concrete
80/205
7/26/2019 Section 5 Concrete
81/205
7/26/2019 Section 5 Concrete
82/205
7/26/2019 Section 5 Concrete
83/205
7/26/2019 Section 5 Concrete
84/205
7/26/2019 Section 5 Concrete
85/205
7/26/2019 Section 5 Concrete
86/205
7/26/2019 Section 5 Concrete
87/205
7/26/2019 Section 5 Concrete
88/205
7/26/2019 Section 5 Concrete
89/205
7/26/2019 Section 5 Concrete
90/205
7/26/2019 Section 5 Concrete
91/205
7/26/2019 Section 5 Concrete
92/205
7/26/2019 Section 5 Concrete
93/205
7/26/2019 Section 5 Concrete
94/205
7/26/2019 Section 5 Concrete
95/205
7/26/2019 Section 5 Concrete
96/205
7/26/2019 Section 5 Concrete
97/205
7/26/2019 Section 5 Concrete
98/205
7/26/2019 Section 5 Concrete
99/205
7/26/2019 Section 5 Concrete
100/205
7/26/2019 Section 5 Concrete
101/205
7/26/2019 Section 5 Concrete
102/205
7/26/2019 Section 5 Concrete
103/205
7/26/2019 Section 5 Concrete
104/205
7/26/2019 Section 5 Concrete
105/205
7/26/2019 Section 5 Concrete
106/205
7/26/2019 Section 5 Concrete
107/205
7/26/2019 Section 5 Concrete
108/205
7/26/2019 Section 5 Concrete
109/205
7/26/2019 Section 5 Concrete
110/205
7/26/2019 Section 5 Concrete
111/205
7/26/2019 Section 5 Concrete
112/205
7/26/2019 Section 5 Concrete
113/205
7/26/2019 Section 5 Concrete
114/205
7/26/2019 Section 5 Concrete
115/205
7/26/2019 Section 5 Concrete
116/205
7/26/2019 Section 5 Concrete
117/205
7/26/2019 Section 5 Concrete
118/205
7/26/2019 Section 5 Concrete
119/205
7/26/2019 Section 5 Concrete
120/205
7/26/2019 Section 5 Concrete
121/205
7/26/2019 Section 5 Concrete
122/205
7/26/2019 Section 5 Concrete
123/205
7/26/2019 Section 5 Concrete
124/205
7/26/2019 Section 5 Concrete
125/205
7/26/2019 Section 5 Concrete
126/205
7/26/2019 Section 5 Concrete
127/205
7/26/2019 Section 5 Concrete
128/205
7/26/2019 Section 5 Concrete
129/205
7/26/2019 Section 5 Concrete
130/205
7/26/2019 Section 5 Concrete
131/205
7/26/2019 Section 5 Concrete
132/205
7/26/2019 Section 5 Concrete
133/205
7/26/2019 Section 5 Concrete
134/205
7/26/2019 Section 5 Concrete
135/205
7/26/2019 Section 5 Concrete
136/205
7/26/2019 Section 5 Concrete
137/205
7/26/2019 Section 5 Concrete
138/205
7/26/2019 Section 5 Concrete
139/205
7/26/2019 Section 5 Concrete
140/205
7/26/2019 Section 5 Concrete
141/205
7/26/2019 Section 5 Concrete
142/205
7/26/2019 Section 5 Concrete
143/205
7/26/2019 Section 5 Concrete
144/205
7/26/2019 Section 5 Concrete
145/205
7/26/2019 Section 5 Concrete
146/205
7/26/2019 Section 5 Concrete
147/205
7/26/2019 Section 5 Concrete
148/205
7/26/2019 Section 5 Concrete
149/205
7/26/2019 Section 5 Concrete
150/205
7/26/2019 Section 5 Concrete
151/205
7/26/2019 Section 5 Concrete
152/205
7/26/2019 Section 5 Concrete
153/205
7/26/2019 Section 5 Concrete
154/205
7/26/2019 Section 5 Concrete
155/205
7/26/2019 Section 5 Concrete
156/205
7/26/2019 Section 5 Concrete
157/205
7/26/2019 Section 5 Concrete
158/205
7/26/2019 Section 5 Concrete
159/205
7/26/2019 Section 5 Concrete
160/205
7/26/2019 Section 5 Concrete
161/205
7/26/2019 Section 5 Concrete
162/205
7/26/2019 Section 5 Concrete
163/205
7/26/2019 Section 5 Concrete
164/205
7/26/2019 Section 5 Concrete
165/205
7/26/2019 Section 5 Concrete
166/205
7/26/2019 Section 5 Concrete
167/205
7/26/2019 Section 5 Concrete
168/205
7/26/2019 Section 5 Concrete
169/205
7/26/2019 Section 5 Concrete
170/205
7/26/2019 Section 5 Concrete
171/205
7/26/2019 Section 5 Concrete
172/205
7/26/2019 Section 5 Concrete
173/205
7/26/2019 Section 5 Concrete
174/205
7/26/2019 Section 5 Concrete
175/205
7/26/2019 Section 5 Concrete
176/205
7/26/2019 Section 5 Concrete
177/205
7/26/2019 Section 5 Concrete
178/205
7/26/2019 Section 5 Concrete
179/205
7/26/2019 Section 5 Concrete
180/205
7/26/2019 Section 5 Concrete
181/205
7/26/2019 Section 5 Concrete
182/205
7/26/2019 Section 5 Concrete
183/205
7/26/2019 Section 5 Concrete
184/205
7/26/2019 Section 5 Concrete
185/205
7/26/2019 Section 5 Concrete
186/205
7/26/2019 Section 5 Concrete
187/205
7/26/2019 Section 5 Concrete
188/205
7/26/2019 Section 5 Concrete
189/205
7/26/2019 Section 5 Concrete
190/205
7/26/2019 Section 5 Concrete
191/205
7/26/2019 Section 5 Concrete
192/205
7/26/2019 Section 5 Concrete
193/205
QCS 2014 Section 05: Concrete Page 1Part 19: Testing of Water Retaining Structures
19 TESTING OF WATER RETAINING STRUCTURES................................................ 2
19.1 GENERAL ............................................................................................................... 2 19.1.1 Scope 2 19.1.2 References 2 19.1.3 Submittals 2 19.1.4 General 2
19.2 TESTING ................................................................................................................. 2 19.2.1 General 2 19.2.2 Cleaning 3
19.3 TESTING PROCEDURE ......................................................................................... 4 19.3.1 Walls 4 19.3.2 Roofs 5 19.3.3 Disposal of Water Used for Testing 5
7/26/2019 Section 5 Concrete
194/205
QCS 2014 Section 05: Concrete Page 2Part 19: Testing of Water Retaining Structures
19 TESTING OF WATER RETAINING STRUCTURES
19.1 GENERAL
19.1.1 Scope
1 This Part of the specification applies to the testing of structures that are designed with theintention of retaining water.
2 Related Section and Parts are as follows:
This SectionPart 1 ............... GeneralPart 13 ............. Inspection and Testing of Hardened ConcretePart 14 ............. Protective Treatments for Concrete
19.1.2 References
BS 8007 ...................... Code of Practice for Design of concrete structures for the retaining ofaqueous liquids
19.1.3 Submittals
1 The Contractor shall record and submit to the Engineer within 24 hours the results of thewatertightness tests carried out.
19.1.4 General
1 Water retaining structures shall be watertight when subjected to external groundwaterpressures or to tests as specified in this Part.
19.2 TESTING
19.2.1 General
1 The Contractor shall test watertightness of water retaining structures including storagereservoirs and other miscellaneous structures that require to be watertight.
2 All water used for testing shall be potable or irrigation water and the Contractor shall make
arrangements for the supply and disposal of this water.
3 Water retaining structures shall be tested for watertightness after completion, in accordancewith the following method or as directed by the Engineer:
(a) the structure shall be filled with potable or irrigation water in stages not exceeding 1 min 24 h held at each water level for such time as the Engineer may require. Shoulddampness or leakage occur, the water shall be drawn off and the defects remedied tothe satisfaction of the Engineer
(b) in the case of structures which are subdivided into individual tanks, each individualtank shall be tested separately. In the case of underground or partially undergroundstructures, the testing shall take place before application of water proofing membrane,liner material or perimeter drain, filter material or backfilling is placed against the walls
7/26/2019 Section 5 Concrete
195/205
QCS 2014 Section 05: Concrete Page 3Part 19: Testing of Water Retaining Structures
(c) in the case of hopper bottomed tanks, this shall be taken to mean that no material isplaced against the vertical external walls of the tank, the sloping walls of the hopperbottoms of the tanks being assumed built directly against the excavation apart from theblinding concrete
(d) no placing of material against the walls shall take place until the Engineer has givenhis written approval and acceptance of the water retaining structures as watertight
(e) filling shall not take place earlier than 28 d after the casting of the final sections of thestructure which will be stressed by the filling of the structure.
(f) testing shall not be undertaken until the structure to be tested has been; completedstructurally including roof, if any, and has been passed by the Engineer in writing assatisfactory in all respects other than watertightness, especially in regard to the finalfinish of the work
(g) not withstanding the satisfactory completion of the seven day test, leakage, cracks,and damp patches and sweating visible on the outside faces of the structure shall be
rectified from the water face by an injection system to the approval of the Engineer
(h) repair making the outer face only watertight wall not be accepted, this applies to bobbinholes also
(i) the structure shall be retested until the watertightness is approved by the Engineer.
(j) should the structure fail a test in the above respects, the Contractor shall immediatelytake such steps as may be necessary to:
(i) ascertain the nature and positions of defects or leakage's
(ii) empty the structure
(iii) remedy the defects in a manner approved by the Engineer, employing workerswho are specialists in this class of work
(k) when the remedial work has been completed in the manner approved by the Engineer,the testing and if necessary rectification shall be repeated until a satisfactory test isachieved.
(l) if necessary, in extreme cases of lack of watertightness, the Engineer may reject thestructure or portions thereof.
19.2.2 Cleaning
1 All water retaining structures shall, on completion, be carefully cleaned of all debris, to the
complete satisfaction of the Engineer as follows:(a) shall be brushed down on all internal faces with a stiff broom while still dry
(b) all resulting debris removed
(c) all associated reservoir pipe work shall be cleaned in accordance with the specifiedrequirements
(d) the structure shall then be flooded with approximately 75 mm of clean water
(e) whole of internal faces shall be carefully brushed down with stiff brooms using thewater continuously until all faces are clean
(f) water shall then be drained off
(g) walls and floors hosed and flushed with clean water until perfectly clean.
7/26/2019 Section 5 Concrete
196/205
QCS 2014 Section 05: Concrete Page 4Part 19: Testing of Water Retaining Structures
19.3 TESTING PROCEDURE
19.3.1 Walls
1 After completion and cleaning of the structure and all associated pipe work, if any, theContractor shall fill the structure up to the top water level and leave for a stabilising period of21 d in order to allow for absorption and autogenous healing to take place.
2 Water shall be added over this period to maintain the top water level.
3 The Contractor shall ensure that all pipes and specials are available in ample time ahead oftesting.
4 Two sets of evaporation trays shall be provided along with two sets of rain gauges.
5 Levels in the trays and structure shall be made and recorded by a hook gauge with vernier
attachments.
6 Before and during testing, flows in the structure under drainage, if any, shall be monitored,measured and recorded.
7 Each under drain shall be numbered and observations reported by under drain number tofacilitate analysis of the data.
8 All leaks shall be repaired within one month of their detection.
9 On the twenty-second day, two shallow watertight evaporation trays of area 0.4 m2 shall befilled with 75 mm of water and placed to float in the structure.
10 The water level in the structure shall be recorded and the test commenced and carried outover the next 7 d.
11 Readings of water levels in the structure and trays shall be made and recorded every 24 hover this period.
12 If the water level in the tank falls by more than indicated by the evaporation trays, or othersign of leakage occurs by the end of the test period then the Contractor shall search andmark all areas of defect.
13 The structure shall then be emptied and the defects made good as specified herein.
14 After completion of remedial measures the structure shall be refilled and the test repeated.
15 This process shall be repeated until the structure is watertight to the satisfaction of theEngineer.
16 The fall of water level in the structure over the test period of 7 d, minus the fall accounted forby evaporation and rainfall shall not exceed 1/500 of the average water depth of the fullstructure or 10 mm whichever is less.
7/26/2019 Section 5 Concrete
197/205
QCS 2014 Section 05: Concrete Page 5Part 19: Testing of Water Retaining Structures
19.3.2 Roofs
1 The roofs of structures shall be tested for watertightness before laying of roof membrane.
2 Roof and fittings shall be hosed down vigorously and this shall be repeated in such a way asto keep the roof wet for three successive days.
3 Roof and fittings shall be deemed satisfactory for watertightness if no discernible leaks ordamp patches show in the soffit.
4 Roof covering shall be completed as soon as possible after testing.
19.3.3 Disposal of Water Used for Testing
1 The Contractor shall provide suitable means for disposal of water used for testing, such thatno damage results to facilities, structures or property.
2 These means shall be subject to the approval of the Engineer and local authorities.
3 Details shall be submitted to Engineer on request.
4 The Contractor shall be responsible for damage caused by his filling, testing, flushing andwastewater disposal operations.
END OF PART
7/26/2019 Section 5 Concrete
198/205
QCS 2014 Section 05: Concrete Page 1Part 20: Personnel Qualifications and Certification
20 PERSONNEL QUALIFICATIONS AND CERTIFICATIONS ........ .......... ......... ......... . 2
20.1 GENERAL ............................................................................................................... 2
20.2 AUDITORS .......... ......... .......... ......... ......... ......... .......... ......... .......... ......... ......... ....... 2
20.3 READY MIXED CONCRETE COMPANIES ............................................................. 2 20.3.1 Technical Department 2 20.3.2 Production and Operation Department 4
20.4 TESTING LABORATORIES .................................................................................... 5 20.4.1 Concrete Laboratory Department 5
20.5 CONTRACTORS ..................................................................................................... 6 20.5.1 Concrete Construction Department 6
20.6 CONSULTANTS ...................................................................................................... 7 20.6.1 Site Supervision Department 7
20.6.2 Site Supervision / Design Office Department 7
7/26/2019 Section 5 Concrete
199/205
QCS 2014 Section 05: Concrete Page 2Part 20: Personnel Qualifications and Certification
20 PERSONNEL QUALIFICATIONS AND CERTIFICATIONS
20.1 GENERAL
1 The qualification requirements given in this part are optional unless otherwise mentionedbelow. The purpose of the qualifications is to prepare the industry to cope with the requiredquality of construction. The requirements will become compulsory as and when stated byQatar Standards.
2 Qualifications shall be approved by Qatar Standards or their representatives.
20.2 AUDITORS
1 Qatar Standards auditors and their approved representatives shall be qualified for inspecting
concrete ready mix plants and testing laboratories.
20.3 READY MIXED CONCRETE COMPANIES
20.3.1 Technical Department
1 Position: Technical Manager / QC Manager
Qualifications:
(a) Concrete specification review and concrete mixture proportioning
(b) Concrete constituent materials, their characteristics, and effects on concrete properties
(c) Fresh and hardened concrete properties
(d) Durability of concrete
(e) Production and delivery of Ready Mixed Concrete
(f) Handling, placing and curing of concrete
(g) Specifying and evaluation of concrete strength
(h) Testing of concrete and its constituents
(i) Quality control procedures and statistical analysis
(j) Hot weather concreting(k) Troubleshooting concrete problems
2 Position: Site Supervisor
Qualifications:
(a) The supervisor shall be capable of satisfactorily reading, understanding andperforming the below fresh concrete tests:
BS EN 12350-1 .......... Testing fresh concrete - Sampling ASTM C1064/C1064M Temperature of freshly mixed hydraulic-cement concrete
7/26/2019 Section 5 Concrete
200/205
QCS 2014 Section 05: Concrete Page 3Part 20: Personnel Qualifications and Certification
BS EN 12350-2 .......... Testing fresh concrete Slump testBS EN 12350-6 ......... Testing fresh concrete DensityBS EN 12390-2 ......... Testing hardened concrete Making and curing specimens for
strength tests
ASTM C1611/C1611M Standard test method for slump flow of self consolidating concrete
3 Position: Lab Supervisor
Qualifications:
(a) The supervisor shall be capable of satisfactorily reading, understanding andperforming the below fresh and hardened concrete tests:
BS EN 12350-1 ......... Testing fresh concrete - Sampling
ASTM C1064/C1064M Temperature of freshly mixed hydraulic-cement concrete
BS EN 12350-2 ......... Testing fresh concrete Slump testBS EN 12350-6 ......... Testing fresh concrete DensityBS EN 12350-7 ......... Testing fresh concrete Air content (Pressure Method)BS EN 12390-2 ......... Testing hardened concrete Making and curing specimens for
strength tests
ASTM C1611/C1611M Standard test method for slump flow of self consolidating concrete
BS EN 12390-3 .......... Testing hardened concrete - Compressive strength of test specimens
BS EN 932-1 ............. Aggregates - Methods of sampling
BS EN 932-2 ............. Aggregates Methods of reducing laboratory samples
BS EN 933-1 ............. Aggregates Determination of particle size distribution (and dustcontent)
BS EN 1097-6 ........... Aggregates Determination of particle density and water absorptionBS EN 1097-3 ........... Aggregates Determination of loose bulk density and voids
ASTM C566 ............ Method of determination of moisture content
4 Position: Site Technician (compulsory if requested by the Engineer)
Qualifications:
(a) The technician shall be capable of satisfactorily performing the below fresh concretetests:
BS EN 12350-1 ......... Testing fresh concrete - Sampling
ASTM C1064/C1064M Temperature of freshly mixed hydraulic-cement concrete
BS EN 12350-2 ......... Testing fresh concrete Slump testBS EN 12350-6 ......... Testing fresh concrete DensityBS EN 12390-2 ......... Testing hardened concrete Making and curing specimens for
strength tests
ASTM C1611/C1611M Standard test method for slump flow of self consolidating concrete
7/26/2019 Section 5 Concrete
201/205
QCS 2014 Section 05: Concrete Page 4Part 20: Personnel Qualifications and Certification
5 Position: Lab Technician (compulsory if requested by the Engineer)
Qualifications:
(a) The technician shall be capable of satisfactorily performing the below fresh and
hardened concrete tests:
BS EN 12350-1 ......... Testing fresh concrete - Sampling
ASTM C1064/C1064M Temperature of freshly mixed hydraulic-cement concrete
BS EN 12350-2 ......... Testing fresh concrete Slump testBS EN 12350-6 ......... Testing fresh concrete DensityBS EN 12350-7 ......... Testing fresh concrete Air content (Pressure Method)BS EN 12390-2 ......... Testing hardened concrete Making and curing specimens for
strength tests
ASTM C1611/C1611M Standard test method for slump flow of self consolidating concrete
BS EN 12390-3 ......... Testing hardened concrete - Compressive strength of test specimens
BS EN 932-1 ............. Aggregates - Methods of sampling
BS EN 932-2 ............. Aggregates Methods of reducing laboratory samplesBS EN 933-1 ............. Aggregates Determination of particle size distribution (and dust
content)
BS EN 1097-6 ........... Aggregates Determination of particle density and water absorptionBS EN 1097-3 ........... Aggregates Determination of loose bulk density and voids
ASTM C566 ............ Method of determination of moisture content
20.3.2 Production and Operation Department
1 Position: Plant/Production/Operation Manager and/or Supervisor
Qualifications:
(a) Properties of concrete and its constituents
(b) Materials management
(c) Plant design, function and maintenance
(d) Batching operations, procedures and dispatching
(e) Materials management and inventory(f) Safety regulations and procedures
2 Position: Plant Operator
Qualifications:
(a) Basic concrete properties and characteristics of its constituents
(b) Scales, meters and batching sequence and control system
(c) Central mixing and discharging
(d) Tolerances, overweight/underweight controls
7/26/2019 Section 5 Concrete
202/205
QCS 2014 Section 05: Concrete Page 5Part 20: Personnel Qualifications and Certification
(e) Troubleshooting scales, gates and other plant components
(f) Safety procedures
20.4 TESTING LABORATORIES
20.4.1 Concrete Laboratory Department
1 Position: Laboratory Manager / QC Manager
Qualifications:
(a) Concrete specification review and concrete mixture proportioning
(b) Concrete constituent materials, their characteristics, and effects on concrete properties
(c) Fresh and hardened concrete properties
(d) Durability of concrete
(e) Production and delivery of Ready Mixed Concrete
(f) Handling, placing and curing of concrete
(g) Evaluation of concrete strength
(h) Testing of concrete and its constituents
(i) Quality control procedures and statistical analysis
(j) Hot weather concreting
(k) Troubleshooting concrete problems
2 Position: Supervisor
Qualifications:
(a) The supervisor shall be capable of satisfactorily reading, understanding andperforming the below fresh and hardened concrete tests:
BS EN 12350-1 ......... Testing fresh concrete - Sampling
ASTM C1064/C1064M Temperature of freshly mixed hydraulic-cement concrete
BS EN 12350-2 ......... Testing fresh concrete Slump testBS EN 12350-6 ......... Testing fresh concrete DensityBS EN 12350-7 ......... Testing fresh concrete Air content (Pressure Method)BS EN 12390-2 ......... Testing hardened concrete Making and curing specimens for
strength tests
ASTM C1611/C1611M Standard test method for slump flow of self consolidating concrete
BS EN 12390-3 ......... Testing hardened concrete - Compressive strength of test specimens
BS EN 932-1 ............. Aggregates - Methods of sampling
BS EN 932-2 ............. Aggregates Methods of reducing laboratory samples
BS EN 933-1 ............. Aggregates
Determination of particle size distribution (and dustcontent)
7/26/2019 Section 5 Concrete
203/205
QCS 2014 Section 05: Concrete Page 6Part 20: Personnel Qualifications and Certification
BS EN 1097-6 ........... Aggregates Determination of particle density and water absorptionBS EN 1097-3 ........... Aggregates Determination of loose bulk density and voids
ASTM C566 ............ Method of determination of moisture content
3 Position: Technician (compulsory if requested by the Engineer)
Qualifications:
(a) The technician shall be capable of satisfactorily performing the below fresh andhardened concrete tests:
BS EN 12350-1 ......... Testing fresh concrete - Sampling
ASTM C1064/C1064M Temperature of freshly mixed hydraulic-cement concrete
BS EN 12350-2 ......... Testing fresh concrete Slump test
BS EN 12350-6 ......... Testing fresh concrete DensityBS EN 12350-7 ......... Testing fresh concrete Air content (Pressure Method)BS EN 12390-2 ......... Testing hardened concrete Making and curing specimens for
strength tests
ASTM C1611/C1611M Standard test method for slump flow of self consolidating concrete
BS EN 12390-3 ......... Testing hardened concrete - Compressive strength of test specimens
BS EN 932-1 ............. Aggregates - Methods of sampling
BS EN 932-2 ............. Aggregates Methods of reducing laboratory samplesBS EN 933-1 ............. Aggregates Determination of particle size distribution (and dust
content)
BS EN 1097-6 ........... Aggregates Determination of particle density and water absorptionBS EN 1097-3 ........... Aggregates Determination of loose bulk density and voids
ASTM C566 ............ Method of determination of moisture content
20.5 CONTRACTORS
20.5.1 Concrete Construction Department
1 Position: Site Engineer
Qualifications:(a) The site engineer shall be capable of satisfactorily reading, understanding and
performing the below fresh concrete tests:
BS EN 12350-1 ......... Testing fresh concrete - Sampling
ASTM C1064/C1064M Temperature of freshly mixed hydraulic-cement concrete
BS EN 12350-2 ......... Testing fresh concrete Slump testBS EN 12350-6 ......... Testing fresh concrete DensityBS EN 12350-7 ......... Testing fresh concrete Air content (Pressure Method)BS EN 12390-2 ......... Testing hardened concrete Making and curing specimens for
strength tests
ASTM C1611/C1611M Standard test method for slump flow of self consolidating concrete
7/26/2019 Section 5 Concrete
204/205
QCS 2014 Section 05: Concrete Page 7Part 20: Personnel Qualifications and Certification
2 Position: QC Manager/ QC Engineer/ Material Engineer
Qualifications:
(a) Concrete specification review and concrete mixture proportioning
(b) Concrete constituent materials, their characteristics, and effects on concrete properties
(c) Fresh and hardened concrete properties
(d) Durability of concrete
(e) Production and delivery of Ready Mixed Concrete
(f) Handling, placing and curing of concrete
(g) Specifying and evaluating of concrete strength
(h) Testing of concrete and its constituents
(i) Quality control procedures and statistical analysis
(j) Hot weather concreting
(k) Troubleshooting concrete problems
20.6 CONSULTANTS
20.6.1 Site Supervision Department
1 Position: Site Inspector/ Material Inspector
Qualifications:
(a) The site engineer shall be capable of satisfactorily reading, understanding andperforming the below fresh concrete tests:
BS EN 12350-1 ......... Testing fresh concrete - Sampling
ASTM C1064/C1064M Temperature of freshly mixed hydraulic-cement concrete
BS EN 12350-2 ......... Testing fresh concrete Slump testBS EN 12350-6 ......... Testing fresh concrete DensityBS EN 12390-2 ......... Testing hardened concrete Making and curing specimens for
strength tests
ASTM C1611/C1611M Standard test method for slump flow of self consolidating concrete
20.6.2 Site Supervision / Design Office Department
1 Position: Material Engineer
Qualifications:
(a) Concrete specification review and concrete mixture proportioning
(b) Concrete constituent materials, their characteristics, and effects on concrete properties
(c) Fresh and hardened concrete properties(d) Durability of concrete
7/26/2019 Section 5 Concrete
205/205
QCS 2014 Section 05: Concrete Page 8Part 20: Personnel Qualifications and Certification
(e) Production and delivery of Ready Mixed Concrete
(f) Handling, placing and curing of concrete
(g) Specifying and evaluating of concrete strength
(h) Testing of concrete and its constituents(i) Quality control procedures and statistical analysis
(j) Hot weather concreting
(k) Troubleshooting concrete problems
END OF PART