Category: Bricks

The desirable chemical composition of brick earth for good quality bricks are given below (IS: 1077, 1976):

1. Alumina This is the main constituent of every kind of brick earth. This imparts plasticity to the earth so that it can be moulded. If alumina is present in excess, it leads to shrinking and warping during drying and burning. This can be prevented by the addition of sand. 2. Silica It exists in…

The main constituents of good brick earth are alumina, silica, lime, oxide of iron and magnesia.

Bricks have been in use since the dawn of civilization. In the initial stages they were used as sun-dried bricks. Burnt bricks have succeeded sun-dried bricks. It has been reported that bricks have been used to build monuments in different parts of the world. Refined brick making and burning techniques have remarkably improved the quality…