Contract documentationThe contract documentation is all documents which, when combined, form the basis of the contract, including all pre-tender, tender and contractual documentation. Your quote can also form part of the contract documentation.The contract documentation will give you sufficient information to be able to complete the building works and meet the service delivery requirements.The documents that make up the contract documentation include: Contract the binding document or agreement between you and the owner to carry out the building work. The type of contract you use will depend on the size and complexity of the project. Read more aboutwhich contractyou should use Contract conditions define the legal rights and obligations, or the rules by which each party (you and the owner) must comply Special contract conditions as the name suggests, special conditions that are an extension of the general conditions and apply specifically tothe project Bill of quantities a list of materials, parts and labour (and their costs) that are included in the contract. The bill of quantities is helpful in valuing variations and assists in the preparation of progress claims Drawings the architectural and structural plans of the building Specifications set out the technical requirements of the work. They describe the project and requirements for materials and workmanship, and add clarity to the drawings Other documents including technical and pricing schedules.It is recommended that both you and the owner endorse complete sets of all contractual documents, and that all documents are kept intact. You must also ensure that all contracts, including related plans, specifications and directions, are kept for seven years from the date the documents were put into writing.SubcontractsIf you engage subcontractors for building work in Queensland, you must comply with theQueensland Building Services Authority Act 1991(for commercial or residential work).A subcontract is an agreement between two parties for an exchange of goods or services. All subcontracts between a contractor and a subcontractor, or a subcontractor and a sub-subcontractor, are required to comply with the Act. The Act requires that all subcontracts must be in writing.Master Builders subcontract documents have been specifically tailored for the building and construction industry. Each contract allocates risk fairly, outlines obligations in detail, and complies with the requirements set out in the Act. Subcontract Agreement Period SubcontractVisit the Master Builders eShop topurchase subcontractsonline (available to members only) or download thecontract order form. You can alsovisityour local Master Builders officeto purchase subcontracts over the counter.This section of the website provides a basic summary of Master Builders subcontracts, and should be used as a guide only. For more detailed advice and contract support,contact Master Builders.SubcontractAgreementThe Subcontract Agreement is a lump sum contract for use between a contractor and a subcontractor for subcontract works. This contract can be used on both commercial and residential projects.Download asample Subcontract Agreementorpurchase the agreementfrom the eShop.PeriodSubcontractThe Period Subcontract is a subcontract between a contractor and a subcontractor containing rates that extend for an agreed period of time, used in conjunction with a work order to detail specific job requirements.Residential contractsIf you carry out residential building work valued at more than $3,300 in Queensland, you must comply with theDomestic Building Contracts Act 2000.The Act requires you to have a written contract with your clients and to give them a signed copy and a QBCC-approved Contract Information Statement. These documents must be provided as soon as practicable after an agreement is reached (no later than five business days from the date of agreement) and before starting work.The type of contract you use for your building work will depend on the size and complexity of the project. The contract you use must comply with requirements set out in the Act. We strongly recommend using a standard form contract, such as one of Master Builders contracts.Master Builders wide range of residential contracts have been specifically tailored for the building and construction industry. Each contract allocates risk fairly, outlines obligations in detail, and complies with the requirements set out in the Act. Residential Building Contract Residential Renovation Contract Minor Works Contract Trade Contract Simple Works Contract Pool Building ContractVisit the Master Builders eShop topurchase residential contractsonline (available to members only) or download thecontract order form. You can also visityour local Master Builders officeto purchase contracts over the counter.This section of the website provides a basic summary of Master Builders residential contracts, and should be used as a guide only. For more detailed advice and contract support,contact Master Builders.ResidentialBuilding ContractThe Residential Building Contract is a lump sum contract to be used for new houses, duplexes or major residential works, including extensions and alterations. It is a contract between a contractor and residential owner. It is also suitable for use when an architect is acting as an agent on behalf of the owner.TheCommentary on Master Builders Residential Building Contractgives an in-depth explanation of each item in the Residential Building Contract, and explains exactly how to fill out each part of the contract.Download asample Residential Building Contractorpurchase the contractfrom the eShop.ResidentialRenovation ContractThe Residential Renovation Contract is a lump sum contract to be used for large residential renovation or alteration works up to the value of $1 million (guide only). It is a contract between a contractorand residential owner.Download asample Residential Renovation Contractorpurchase the contractfrom the eShop.MinorWorks ContractThe Minor Works Contract is a lump sum contract to be used for minor works up to the value of $80,000; however, it can also be used on projects of a greater value (such as a trade contractor undertaking bricklaying, landscaping or the construction of a large deck). It is a contract between a contractor and residential owner.Download asample Minor Works Contractorpurchase the contractfrom the eShop.TradeContractTheTrade Contract is a lump sum contract for use by a trade contractor when contracting directly with a residentialowner. The Trade Contract is recommended for use by trade contractors when undertaking a specific trade (i.e. bricklaying, landscaping, concreting or plumbing).A Trade Contract should not be used in place of a subcontract.Download asample Trade Contractorpurchase the contractfrom the eShop.SimpleWorks ContractIf the cost of building work exceeds $3,300, it must be covered by a regulated building contract. However, irrespective of the value of work, a written contract is always preferred to a verbal agreement.The Simple Works Contract is a one page contract for use when dealing direct with a client for residential building work where the contract value is less than $3,300.Download asample Simple Works Contractorpurchase the contractfrom the eShop.PoolBuilding ContractThe Pool Building Contract is a lump sum contract for use in the construction of a swimming pool or spa, when contracting directly with a residentialowner.If a pool is being built as part of a residential project (such as a house or duplex) for a contractor, then a subcontract should be used.TYPES OF CEMENT, ITS COMPOSITION AND USESThe following are the types of cement that are in practice:1. Rapid Hardening Cement2. Quick setting cement3. Low Heat Cement4. Sulphates resisting cement5. Blast Furnace Slag Cement6. High Alumina Cement7. White Cement8. Coloured cement9. Pozzolanic Cement10. Air Entraining Cement11. Hydrographic cementTable below shows different types of cement, their composition and uses:Types of CementCompositionPurpose

Rapid Hardening CementIncreased Lime contentAttains high strength in early days it is used inconcretewhere form work are removed at an early stage.

Quick setting cementSmall percentage of aluminium sulphate as an accelerator and reducing percentage of Gypsum with fine grindingUsed in works is to be completed in very short period and concreting in static and running water

Low Heat CementManufactured by reducing tri-calcium aluminateIt is used in massive concreteconstructionlike gravity dams

Sulphates resisting CementIt is prepared by maintaining the percentage of tricalcium aluminate below 6% which increases power against sulphatesIt is used in construction exposed to severe sulphate action by water and soil in places like canals linings, culverts, retaining walls, siphons etc.,

Blast Furnace Slag CementIt is obtained by grinding the clinkers with about 60% slag and resembles more or less in properties of Portland cementIt can used for works economic considerations is predominant.

High Alumina CementIt is obtained by melting mixture of bauxite and lime and grinding with the clinker it is rapid hardening cement with initial and final setting time of about 3.5 and 5 hours respectivelyIt is used in works where concrete is subjected to high temperatures, frost, and acidic action.

White CementIt is prepared from raw materials free from Iron oxide.It is more costly and is used for architectural purposes such as pre-cast curtain wall and facing panels, terrazzo surface etc.,

Coloured cementIt is produced by mixing mineral pigments with ordinary cement.They are widely used for decorative works in floors

Pozzolanic CementIt is prepared by grindin pozzolanic clinker with Portland cementIt is used in marinestructures, sewage works, sewage works and for laying concrete under water such as bridges, piers, dams etc.,

Air Entraining CementIt is produced by adding indigenous air entraining agents such as resins, glues, sodium salts of Sulphates etc during the grinding of clinker.This type of cement is specially suited to improve the workability with smaller water cement ratio and to improve frost resistance of concrete.

Hydrographic cementIt is prepared by mixing water repelling chemicalsThis cement has high workability and strength

Aggregates types and uses. Granite aggregatesGranite aggregates are crushed hard rock of granular structure, being the most common on Earth. Granite rock comes from magma that erupted on the ground surface and then hardened. Good properties of granite make it the most popular building material.In terms of its technical characteristics granite is solid (grades 800-1200) and highly solid (grades 1,400-1,600), frost resistant (grades 300-400), with low flakiness index (5-23%), of the 1st class in terms of radionuclidity (A (eff)