The bulking of sand

Eminently hydraulic lime is one in which the percentage of silica, alumina and iron oxide is

The thickness of lamin boards vary from

The alkaline salt present in the bricks, absorbs moisture from the air which on drying

The silicious sandstone which has been subjected to metamorphic action, is called

The lime mortar is made from

A fine-grained granite

The compressive strength of second elass bricks should bot be less than

Marble is an example of