The compressive strength of felspar is

The compressive strength of ordinary cement is less than its tensile strength.

A good refractory brick should withstand high temperature. It should also have low coefficient of expansion and contract…

The type of briek suitable for panal walls for multi-storeyed buildings is

A good quality cement should have higher percentage of

A fine-grained granite

The quarrying of stone by the method of wedging is successfully carried out in

The base material for distemper is

Efflorescence is caused if