how do we calculate quantity of cement , sand and
aggregates in 1 m3 of M30 grade concrete ?
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Answer Posted / rajasekar
Grade M30 Ratio is 1:1.5:3
I am telling simple concept
Add the ratio 1+1.5+3=5.5
assume approximate volume for 20mm aggregate =1.57
40mm aggregate =1.52
Qty of cement 1/5.5*1.57=0.28m3
Density of cement =1440kg/m3
Weight of cement per m3=1440*0.28=403.2kg/m3
per bag=403.2/50=8.02bag
Qty of fine aggregate=1.5/5.5*1.57=0.428kg/m3
Qty of coarse aggregate=3/5.5*1.57=0.856kg/m3
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