How to calculate material of M20 grade concrete? And ratio

Question

Accepted Answer

To calculate material of M20 grade concrete, we need to know the ratio of cement, sand, and aggregate.

M20 grade concrete has a mix proportion of 1:1.5:3 of cement, sand, and aggregate respectively.
To calculate the quantity of each material, we need to know the volume of concrete required.
Assuming the volume of concrete required is 1 cubic meter, the quantity of cement required would be 0.28 cubic meters.
The quantity of sand required would be 0.42 cubic meters and the quantity of aggregate required would be 0.84 cubic meters.
The total quantity of materials required for 1 cubic meter of M20 grade concrete is 1.54 cubic meters.
The ratio of cement, sand, and aggregate in M20 grade concrete is 1:1.5:3 respectively.

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