how to calculate concrete qty for footing using M25 grade
1:1:2 for 731 cft.
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Answer Posted / dharmesh patel
we can only calculate the quantity in m3 only after that we
can converet in c.ft.
1/4 x 1.54 x 28.8= 11.08 bags cement for 1 m3 for the ratio
of 1:1:2
s0 731 cft = 20.719 m3 * 11.08 = 229.570 bags cement used
1/4 x 1.54 = .385 m3 sand for 1 m3
so 20.719 m3 x .385 = 7.976 m3 sand required in 731 sq .ft
2/4 x 1.54 = 0.77 m3 chips ( aggregate ) for 1 m3
so 20.719 m3 x 0.77 = 15.953 m3 chips required in 731 sq .ft
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