how much cement,sand,aggregate will use for 1 cum in ratio of
1:2:4.
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Answer Posted / er. nirakar behera
Ratio of concrete mix is 1:2:4
we have to calaculate only about the dry volume.
dry density of concrete =14.2qntl/cum
volume of concrete =
1.54/(1+2+4)=0.22cum
Hence for weight of mix ingredients=(14.2qntl/cum*0.22cum)
i.e=3.124qntl
required weight of cement=1*3.124qntl=3.124qntl or say
6.2 bags
for sand =2*6.2cft=12.4 cft
for aggregate=4*6.2cft=24.8cft
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