The standard size of a masonry brick is 20 cm x 10 cm x 10 cm

The thin radial fibres extending from the pith to the cambium layer is called medullary rays.

Laterite is chemically classified as

Quick lime is a

The commonly used lime in white washing is

According to Indian standard specifications, the concrete should be cured under a humidity of

For R.C.C. construction, the maximum size of coarse aggregate is limited to

A good quality cement should have higher percentage of

The expansion in Portland cement can be tested by