how to calculate 1:2:4 ratio concrete cement, sand, metal
and water please give me brief calculation

Answer Posted / sandeepthakur1981

for 01 cu.m.

cement=1.52/7 =.217
= .217x30= 6.51 bags.

sand= .217x2= 0.434cu.m

aggregate= .217x4= 0.868cu.m

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