Types of Bricks

Some of the different types of bricks is as follows.

Clay Bricks - It is like an artificial stone obtained by moulding clay in rectangular blocks of uniform size (19 cm x 9 cm x 9 cm) and then by drying and burning these blocks.

Heavy Duty Bricks - These bricks are made by either pressing process or by extrusion process. these bricks are used in heavy construction engineering works such as bridge structure, industrialfoundations, machine foundations, multi-storeyed buildings, etc.,

Common Burnt Clay Bricks - These bricks shall be hand or machine oulded, allowance being made for shrinkage in drying and burning. These bricks shall be used for common building purposes and should be free from cracks , flaws and nodules of free lime.

Hollow Bricks - These are light weight bricks with cavities, made from special homogenous clay. such bricks have wall thickness of about 20 to 25 mm and are used for partition walls. They also provide good insulation against heat, sound and dampness.

Perforated Bricks - These bricks are light in weight and contain perforations, may be circular, square, elliptical, rectangular in shape throughout their thickness. These bricks are economical and ofer adequate insulation against heat. These bricks are used for the construction of brick panels for light-weight structures, multistoreyed framed structures, decorative partition walls, grill work, etc.,

Fire or Refractory Bricks - These are made from fire clay like ordinary clay bricks. These bricks can resist high temperatures and are used for lining of furnaces and construction of boilers, chambers, chimneys, etc.,

Soda-Lime Bricks - These bricks are prepared by mixing, moulding and treating the four raw materials, i.e., sand, lime, water and pigment. They are either used as ordinary clay bricks in building industry or for ornamental work, being better in appearance.