The ____ water tends to develop dampness and inflorescence of the concrete structures.

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

In cold weather conditions, the temperature of concrete should not be allowed to fall below _______ for at least 3 days …

The _____ is a mixture of cement and sand, the usual proposition being 1:3.

The _____ is used to measure the workability of concrete mixture which is commonly used in the field.

What is minimum cement content for concrete permanently under sea water to avoid the corrosion of reinforcement?

The ________ is the simplest corrosion produced by means of chemical attack.

The sound absorption coefficient of lightweight concrete is nearly _______ than that of ordinary concrete.