Answer Posted / nimmakayala

M10 manual mix, proportion is 1:3:6(C:FA:CA)
M15 manual mix, proportion is 1:2:4

> M15 are design Mix, and proportion on Weight basis (not by
volume basis) depend upon grade/type of cement, type of fine
aggregate and Coarse aggregate

However for the estimate purpose the cement can be calculated
For M15 (1:2:4)– cement is 6.37 bags/Cum
M20(1:1.5:3) Cement -8.09 bags/Cum
M25 (1:1:2)cement -12.2 bags/Cum

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