what is the ratio of M10,M20,M30,M40,M50,M60 grade concrete
Answer Posted / pobitra mondal
M 10= 1:3:6
M 15=1:2:4
M 20=1:1.5:3
M 25=1:1:2.5
M 30=1:1:2
M 35=1:1:1.57
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