The cement, widely used in retaining walls, is

A concrete using an air entrained cement

Curing a concrete for long period ensures better

In order to have segregation in concrete, its dropping height should be less than

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

The shuttering of a hall measuring 4m × 5m, can be removed after

The function of aggregates in concrete is to serve as

The test conducted in the laboratory on the specimen made out of trial concrete mix is called