How many bags of cement are required in 1m3 of M20? - Quora
Answer (1 of 7): Mix design for M20 concrete is generally 1:1.5:3 (Cement : Fine Aggregate : Coarse Aggregate) Empirically, in order to get 1 cum. of wet concrete (i.e. concrete in place) you need 1.54 cum. of dry concrete. This is because when you mix water in it, it undergoes shrinkage. So we...