what is the ratio of M10,M20,M30,M40,M50,M60 grade concrete
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Answer Posted / miranda
M10 : 1 : 3 : 6
M15 : 1 : 2.5 : 5
M20 : 1 : 2 : 4
M25 : 1 :1.5 : 3
M30 : 1 : 1 : 2
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