The water enters into chemical action with cement and this action causes ____ and ____ of concrete.

The _____ is most liable to corrosion.

As compared to conventional concrete, the ____ of no fines concrete is relatively low.

The process of selection of relative proportions of cement, sand, course aggregate and water, so as to obtain a concrete…

For ___ mixing, the materials are stacked on watertight platform, which may be either of wood, Brick or steel.

While placing concrete in hot weather, the aggregate should be _________ to bring down the temperature of concrete.

A _______ consists of a watertight pipe of diameter about 250 mm to 300 mm.

In ____ method, the fineness modulus of sand and aggregate is determined by the standard tests.