how do we calculate quantity of cement , sand and
aggregates in 1 m3 of M30 grade concrete ?
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Answer Posted / k.nabadwip sharma
Calculation for Cement:-
100 cft of conc in loose 144 to 154 cft required,average of
144 and 154 is 149 cft say 150 cft.
M25 = 1:1:2=4
150cft/4=37.5cft
37.5cft/1.2=31.25bags [1 bags of cement is 1.2cft]
=31.25/2.83=11bags [1 cft = 0.0283cum x 100 cft=2.83cum]
per cum cement required=11bags
Calculation for Sand:-
11bags x 1.2 cft = 13.2 cft = 13.2 x 0.0283=0.374 cum
Per cum sand required = 0.374cum
Calculation for Aggregate:
=0.374 x 2 = 0.747 cum
per cum Aggregate required = 0.747 cum
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