Ration used in M10 concrete is 1:3:6 1 Cement, 3 Sand & 6 Aggregate
from M30 onwards the mixes are designed. they dont have a const ration as in the case of mixes like M10, M15....,M25
M40 Concrete ratio 1:1.65:2.92 (cement:FA:CA)W/C ratio = 0.4As per Indian Standards.
How to mix 4500 psi cement?
1:2:41 :2:3
1:4:8
from M30 onwards the mixes are designed. they dont have a const ration as in the case of mixes like M10, M15....,M25
M40 Concrete ratio 1:1.65:2.92 (cement:FA:CA)W/C ratio = 0.4As per Indian Standards.
1:4:8
1:2:4
1:1:2
How to mix 4500 psi cement?
the strength of concrete is effected by water /cement ratio as the water/cement ratio increases the strength of the concrete decreases
1:2:41 :2:3
1:2:41 :2:3
The water/concrete ratio, not mixing it well enough, quality of raw materials, the age of the concrete, and the temperature and humidity of the area surrounding the concrete.
1:1.5:3:0.45 (cement,fine aggregate,coarse aggregate, water cement ratio)
There is no set ratio for a concrete requiring a compressive strength of m50. It is usually created according to the factors of the site condition and location.