Chapter: Civil - Construction Materials: Stones, Bricks,Concrete Blocks

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Bricks

Bricks
One of the oldest building material brick continues to be a most popular and leading construction material because of being cheap, durable and easy to handle and work with.


Bricks

 

One of the oldest building material brick continues to be a most popular and leading construction material because of being cheap, durable and easy to handle and work with. Clay bricks are used for building-up exterior and interior walls, partitions, piers, footings and other load bearing structures.

 

A brick is rectangular in shape and of size that can be conveniently handled with one hand. Brick may be made of burnt clay or mixture of sand and lime or of Portland cement concrete. Clay bricks are commonly used since these are economical and easily available. The length, width and height of a brick are interrelated as below:

 

Length of brick = 2 width of brick + thickness of mortar Height of brick = width of brick

 

Size of a standard brick (also known as modular brick) should be 19 9 9 cm and 19 9 4 cm. When placed in masonry the 19 9 9 cm brick with mortar becom es 20 10 10 cm.

 

However, the bricks available in most part of the country still are 9" " 3" and are known as field bricks. Weight of such a brick is 3.0 kg. An indent called frog, 1-2 cm deep, as shown in Fig. 5, is provided for 9 cm high bricks. The size of frog should be 10 4 1 cm. The purpose of providing frog is to form a key for holding the mortar and therefore, the bricks are laid with frogs on top. Frog is not provided in 4 cm high bricks and extruded bricks.


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