Volume of coarse aggregate required to make 100m³ of 1:2:4 concrete is

The basic water depend on

The behavior of concrete under instantaneous loads is

A suitable admixture added at the time of preparing for concrete mix makes the concrete:

High percentage of tricalcium silicate and low percentage of dicalcium silicate in cement results in

The bond strength between steel and concrete is due to

The diameter of needle used in Vicat's apparatus for the determination of initial setting time is prescribed as

The ratio of various ingredients (cement, sand, aggregates) in concrete of grade M20, is