The commonly used raw material in the manufacture of cement, is

The kiln which may work throughout the year, is

Formula for quick lime, is

The presence of sand in brick earth prevents:

The portion of the brick without a triangular corner equal to half the width and half the length, is called

Iron ore may contain

Minimum required water cement ratio for a workable concrete, is

Black marble is generally found in the district of

The frog of a brick is normally made on its