Calculation of Cement Volume for 1:2:4 Concrete

To calculate the volume of cement required for preparing 100 cu.m of 1:2:4 concrete, we need to follow the steps below:

Step 1: Calculation of Total Volume of Concrete
The first step is to calculate the total volume of the concrete. The formula for calculating the volume of concrete is:

Volume of Concrete = Length x Breadth x Height

In this case, assuming that the dimensions of the concrete are 10m x 10m x 1m, the total volume of concrete can be calculated as:

Volume of Concrete = 10m x 10m x 1m = 100 cu.m

Therefore, the total volume of concrete required is 100 cu.m.

Step 2: Calculation of Volume of Cement
The next step is to calculate the volume of cement required for the concrete mix. The mix ratio of 1:2:4 means that for every 1 part of cement, 2 parts of sand and 4 parts of coarse aggregates are used.

Therefore, the volume of cement can be calculated as follows:

Volume of Cement = (1/7) x Volume of Concrete
where 1/7 is the ratio of cement to the total mix.

Volume of Cement = (1/7) x 100 cu.m
Volume of Cement = 14.29 cu.m

Therefore, the volume of cement required to prepare 100 cu.m of 1:2:4 concrete is 14.29 cu.m.

Conclusion

In conclusion, to calculate the volume of cement required for preparing 100 cu.m of 1:2:4 concrete, we need to calculate the total volume of concrete and then use the mix ratio to calculate the volume of cement. This calculation can be used to determine the amount of cement required for any concrete mix with a known mix ratio.

Volume of dry materials we generally taken 1.54 more than required actually volume thus
cement quantity will be from given ratio
cement quantity=1.54×100×1/7=22m³