GAIL (India) Limited

113. SPECIFICATION FOR CAST – IN – SITU REINFORCED CEMENT CONCRETE3.1 GENERAL3.1.1 DESCRIPTIONThis section covers the requirements for finishing of cement concrete, proportioning, batching, mixing,testing, placing, compacting, finishing, jointing, curing and all other work as required for cast in placereinforced concrete. The contractor shall provide all the materials including cement, steel, labour,equipment, ‘form work’, scaffolding etc., required for completion of all reinforced concrete works as perdrawings and documents.Cement concrete shall be composed of cement, fine aggregate, coarse aggregate,water, with or without admixture as approved, proportioned and mixed as specified herein.3.1.2 RELATED WORK SPECIFIED ELSEWHEREa) Steel reinforcementb) Form work3.1.3 APPLICABLE CODES AND STANDARDSThe codes and standards generally applicable to the work of this section are listed hereinafter.IS 383 Coarse and fine aggregates from natural sources for concreteIS 456 Code of practice for plain and reinforced concreteIS 516 Methods of testing for strength of concreteIS 1199 Methods of sampling and analysis of concreteIS 1489 Portland - Pozzolana cementIS 1838 Performed fillers for expansion joints in concrete non-extruding and resilient typeIS 1946 Code of practice for use of fixing devices in walls, ceiling and floors of solidConstructionIS 2389 Methods of testing of aggregate for concrete’sIS 2505 Concrete vibrators, immersion typeIS 2645 Integral cement water proofing compoundsIS 3414 Code of practice for design and installation of joints in buildingsIS 3558 Code of practice for use for immersion vibrators for consolidating concreteIS 4082 Recommendation on stacking and storage of construction materials atIS 7861 Code of practice for extreme weather concretizingIS 7861 Recommended practice for hot weather (part I) concretizingIS 8112 Ordinary Portland Cement grade 43IS 12269 Ordinary Portland Cement grade 53PART— IThe following clauses are intended to amplify the requirements of the reference document listed aboveand the contractor shall comply with these clauses3.2 SUBMITTALS3.2.1 Material Report3.2.2 Prior to start of delivery of materials required, the following shall be submitted by the contractor to theConsultant / Engineer-in-charge for approvalSuppliers and / or sources of all consumable materials including cement, steel, fine and coarse aggregates,water additives, bricks and timber etc.Quality Inspection Plan to ensure continuing quality control of ingredients by periodic sampling, testingand reporting to the Consultant on the quality of materials being supplied.