The standard mix is 123 That is one cement two sand three gravel
The mix proportion for M40 concrete is 1:1.65:2.92W/C ratio = 0.4The design calculation is as per IS mix design
The proportion of the bed mortar should be 4:1 for the sand : cement.
1:4:8
1:1:2
10-90% . More information get at http://www.ukfreewell.com.ua
The 124 proportion in concrete technology is 1 bucket of cement to 2 buckets of sand to 4 buckets of aggregates to 1/2 bucket of water.
1:1:2
If you want to know the volume of blockfill for 8 inch blocks its 120 blocks to the cubic metre of concrete
1:1:2 Hope it helps
The grade of concrete for various concrete proportions areM10 - 1:3:6 (Cement:Fine aggregate:Coarse aggregate)M15 - 1:2:4M20 - 1:1.5:3M25 - 1:1:2
The standard mix is 123 That is one cement two sand three gravel
Water/Cement Ratio should not exceed 200 litres/m3 .