How many cncrete grades are used for construction,explain
with proportion,grades and where it used
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Answer Posted / tapas kr. das
Mainly we used in small project are as follows....
M10-1:4:6
M15-1:2:4
M20-1:1.5:3
M25-1:1:2
And in big construction we used
M30,M35,M40,M45...
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