what are IS code for
M20, 25, etc
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Answer Posted / jaydeep banerjee
As per IS the volume mix of concrete shoud be mix for
M20,1:1.5:3 ratio and for M25-1:1:2 ratio and after 28
days compressive strength should be more than 20N/mm2 for
M20 & 25N/mm2 for M25
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