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CALCULATION OF MATERIAL IN 1CUM CONCRETE

Taking concrete 1cum(M20)
Concrete ratio :- 1:1.5:3
1cum dry concrete = 1.54cum wet concrete
So,
Cement = 1.54*1/5.5 = 0.28cum
Now 1cum cement = 1440kg
So, 0.28 cum concrete = 1440*0.28
= 403 kg
And sand :- 1.54*1.5/5.5 = 0.42cum
Now 1cum = 35.32 cft
So, 0.42cum = 35.32*0.42 = 14.83 cft
Stone :- 1.54*3/5.5 = 0.84 = 0.84*35.32 = 29.67 cft.

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