HOW TO CALCULATE CEMENT BAGS IN 1 CUBIC METER ?

PROCEDURE TO CALCULATE CEMENT BAGS IN 1 CUBIC METER:

Let us consider the nominal mix is 1:2:4

Wastage of cement during handling is considered as 2%

Output of mix is considered as 67%

To achieve 1 cum output, we need drymix 1/0.67 = 1.49 say 1.50 cum.

Now add the wastage of 2%, i.e (1.50 + 0.02) = 1.52 cum.

Volume of cement = (cement/cement+sand+aggregate) × Total material

=(1/1+1+4) × 1.52

=0.2171 cum

Now, Density of cement is 1440 kg/cum

Weight of 1 bag cement = 50 kg.

Therefore volume of 1 bag cement = 50/1440

=0.0347 cum.

∴ No. of cement bags required in 1 cubic meter

= 0.2171/0.0347

= 6.25 bags.  

Note: Same formula can be used for calculating cement for other nominal mixes also.