The setting and hardening of cement paste is mainly due to the hydration and hydrolysis of

The constituent in lime which retard the slaking action and increase the rapidity of setting, is

Slate in the form of tiles is used

Which of the following statement is correct?

The liquid medium used in oil paints is

Efflorescence is caused if

The rocks formed due to alteration of original structure under heat and excessive pressure are called metamorphic rocks.

The moisture content in timber for framework should not exceed

The lime which contains more than 30% of clayey impurities in the form of silica, alumina and iron oxide, is known as