As per IS specifications, the maximum final setting time for ordinary Portland cement should be

Snowcrete is one of the patent forms of

The rocks having alumina or clay as their major constituents are known as

The most durable varnish is

Bulking of sand is caused due to

The stones obtained by blasting are used as

Priming consists of

Most commonly used solvent in oil paints, is

For melting one tonne of cast iron