M20 Grade ratio?
M30 Grade ratio?
M40 Grade ratio ?
Answer Posted / partha mitra
M15 - 1:2:4
M20 - design mix as well as nominal mix,and the nominal
mix ratio is(1:1.5:3)
M25 - design mix as well as nominal mix,and the nominal
mix ratio is-(1:1:2)
M30 - design mix
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