M20 Grade ratio?
M30 Grade ratio?
M40 Grade ratio ?
Answer Posted / ranjithkumar t
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 - only design mix
M40 - only design mix
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