The rocks formed due to solidification of molten mass laying below or above the earth surface, are called

The chief ingredient of a paint is

The expansion of Portland cement is caused by

The best primer used for structural steel work is

The specific surface (in cm2/g) of a good Portland cement should not be less than

The compressive strength of a good Portland cement and standard sand mortar after 3 days of curing should not be less th…

The addition of pozzolana to Portland cement causes

The commonly used lime for works under water or in damp situations is

The compound responsible for the initial setting of cement, is