what is the concrete ratio in Class D2 concrete
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40 20 concrete design mix is the water to cementitious materials ratio. This is what determines the class of the design mix.
M40 Concrete ratio 1:1.65:2.92 (cement:FA:CA)W/C ratio = 0.4As per Indian Standards.
1:2:3
class in which objects can be created is called as concrete class.
A lot