40 20 concrete design mix is the water to cementitious materials ratio. This is what determines the class of the design mix.
it has more cement than the normal mix
How should I know ;P
The mix proportion for M40 concrete is 1:1.65:2.92W/C ratio = 0.4The design calculation is as per IS mix design
upto M25 it is nominal mix but after that are the design mix which need to becalculated.....
1:1.5:2.5
What is equivalent to c40 grade material
design mix M25
a concrete mix of suitable slump as per mix design should be selected
40 20 concrete design mix is the water to cementitious materials ratio. This is what determines the class of the design mix.
M30 mix should be a mix design in laboratory with the available raw materials that is used in the preparation of concrete. The aggregates, sand have different compressive strength, water absorption and these values are used in mix design.
7850 kg/m3
it has more cement than the normal mix
land
1:1.5:0.4
How should I know ;P
The mix proportion for M40 concrete is 1:1.65:2.92W/C ratio = 0.4The design calculation is as per IS mix design