Classification of Bricks 2

Classification of Bricks  on the basis of finish, manufacture, burning and types

Classification of Bricks

Classification of Bricks

ON THE BASIS OF FINISH

On the basis of finish the bricks have been classified into the following two types,

a. Sand Faced Bricks:

This type has textured surface manufactured by sprinkling sand on the inner surfaces of the mould.

Classification of Bricks

b. Rustic Bricks:

This type has mechanically textured finish, varying in pattern.

Classification of Bricks

ON THE BASIS OF MANUFACTURE


On the basis of manufacture the bricks have been classified into the following two types,

a. Hand Made Bricks:

These bricks are hand moulded.

Classification of Bricks

b. Machine Made Bricks:

Depending upon mechanical arrangement, bricks are known as wire cut bricks—bricks cut from clay extruded in a column and cut off into brick sizes by wires; pressed bricks— when bricks are manufactured from stiff plastic or semi-dry clay and pressed into moulds; moulded bricks—when bricks are moulded by machines imitating hand mixing.

Classification of Bricks

ON THE BASIS OF BURNING

On the basis of burning the bricks have been classified into the following three types,

a. Pale Bricks:

These are under burnt bricks obtained from outer portion of the kiln.

Classification of Bricks

b. Body Bricks:

These are well burnt bricks occupying central portion of the kiln.

c. Arch Bricks:

These are over burnt also known as clinker bricks obtained from inner portion of the kiln.

ON THE BASIS OF TYPES




On the basis of types the bricks have been classified into the following four types,

a. Solid Bricks:

Small holes not exceeding 25 per cent of the volume of the brick are permitted; alternatively, frogs not exceeding 20 per cent of the total volume are permitted.

Classification of Bricks

b. Perforated Bricks:

Small holes may exceed 25 per cent of the total volume of the brick.

Classification of Bricks

c. Hollow Bricks:

The total of holes, which need not be small, may exceed 25 per cent of the volume of the brick.

Classification of Bricks

d. Cellular Bricks:

Holes closed at one end exceed 20 per cent of the volume.

Classification of Bricks

Read Classification of Bricks on the basis of field practise, use and strength (Click here to read)





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