M20 Grade ratio?
M30 Grade ratio?
M40 Grade ratio ?
Answer Posted / lakshmi
M7.5 - 1:4:8
M10 - 1:3:6
M15 - 1:2:4
M20 - 1:1.5:3
M25 - 1:1:2
M30 - design mix
| Is This Answer Correct ? | 20 Yes | 1 No |
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