The concrete as per IS 456: 2000, the grades of concrete lower than M20 are not to be used in RCC work. The process of relative proportions of cement, sand, coarse aggregate and water
M10 1 : 3 : 6
1 : 1 : 2 and 1 : 1.2 : 2.4 for very high strength.
1 : 1.5 : 3 and 1 : 2 : 4 for normal works.
1 : 3 : 6 and 1 : 4 : 8 for foundations and mass concrete works.
