What is the ratio of Grades M10,M15,M20,M25,M30,M35,M40.
Answer Posted / nagendra
M 5 -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-m40 design mix followed
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