what is the ratio of M10,M20,M30,M40,M50,M60 grade concrete
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Answer Posted / d.s.priyadarshi
M5-1:5:10
M7.5-1:4;6
M10-1:3:6
M15-1:2:4
M20-1:1.5:3
M25-1:1:2
and above as pr IS code mis design
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