The basic raw materials used in the manufacturing of RCC pipes of NP2/NP3/NP4 classes confirming to IS 458:2003 (fourth revision) includes cement, aggregates, reinforcement, water & concrete. These materials have to be used in correct proportions (Indian Standards) to build a high quality RCC pipe. We require the material with the best quality at the most competitive rates to give optimum benefit to the purchaser.
Cement used confirm to IS 12269-OPC 53 Grade cement with minimum compressive strength of 35 N/mm2
Aggregate confirm to IS 383-1970 for manufacturing of RCC pipes.
Reinforcement cages used for RCC pipes are of mild steel confirming to IS 2062 Grade-1.
Water used for mixing of concrete and curing of pipes confirm to IS 456.
The concrete quality with design mix as per IS 456 consist of minimum cement content of 450kg/m3 and a compressive strength not less than 35N/mm2 for 28 days.