What is the ratio of Grades M10,M15,M20,M25,M30,M35,M40.
Answer Posted / aadil bashir bakhari
M30 grade concrete which is having 30N/MM^2 Strength can be prepared from 1:1.43:2.21 where 1 is the cement,1.43 is sand and 2.21 is aggregate ratio
Admixture : FOSROC SP-400 ,1.2 % by the weight of cement
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