Reinforced cement concrete is equally strong in taking ______

The quality of concrete, specifically a ________ permeability, is the best protection against sulphate attack.

The addition of a pozzolanic admixture such as fly ash reduces the ________

Durability of concrete is proportional to _____

What is internal sulphates attack?

Low w/c ratio helps to control suphate attack.

Approximate ratio of strength of the 30 cm cube to that of 15 cm cube is _________

Plain cement concrete is strong in taking _______