what is the ratio of M10,M20,M30,M40,M50,M60 grade concrete
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Answer Posted / r.dinesh
M5 -1:5:10
M7.5 -1:4:8
M10 -1:3:6
M15 -1:2:4
M20 -1:1.5:3
M25 -1:1:2
M30 -1:1:1(HIGH MIX RATIO)
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