What should be the minimum water cement ratio?

Creep is ____ to the strength of concrete.

Cement not more than ____ months old should be used.

Compressive strength of hardened concrete is done by _____

Is it possible to have 0% crack in our building?

A ratio of core height-to-diameter of ______ gives a standard cylinder test.

Symptoms for acid attack?

Symptoms for aggressive water attack?