Question { L&T, 99114 }

M20 Grade ratio?
M30 Grade ratio?
M40 Grade ratio ?

Answer

M 7.5 - 1:4:8
M 10 - 1:3:6
M 15 - 1:2:4
M 20 - 1:1.5:3
M 25 - 1:1.5:2
M 30 design mix

Question { 10851 }

If at site iam supposed to get M30.But by mistake i got M20
mix. How could I differentiate the mix before placing?

Answer

fiends iam trying to solve if it correct reply me

take a container put 0.1 cu.m of concrete add some water in
it slowly try to drain out water separate sand and aggregate
weight it covert the obtained weight to 1 cu.m you come to
know the mix is m30 or m20