Curing of pavements, floors, roofs and slabs, is done by

In designing a ware-house, it is assumed that

The cement concrete in which high compressive stressed are artificially induced before its actual use is called

The apparent specific gravity of an aggregate is defined as

Concrete gains strength due to

Ferro-concrete is another name given to Ferro = iron

The tricalcium aluminate in cement has the property of

Most commonly used material for accelerating hardening of the concrete is