M Sand 1 Unit Weight

Volume of concrete = 1.7 x 1.7 x 0.5 = 1.4 cu.M it looks like you are using m20 grade mix with extra sand.If you follow that mix proportion then to calculate use this following method.Total ratio = 1 + 2 + 3 = 6 cement required = (1/6) x 1.5 = 0.25 cu.M (refer the.