[Ar.Priyanka Mathur]

Brick Manufacturing Processes



1. Raw Material Preparation



2. The Making Process

Clay will be grinded with 15% of water.

The clay will be pushed through the mould based on the shape.

After that, clay will cut to get a standard size of brick using wire.

Sometimes, bricks will produced using big mould that clay will be press that using hydraulic machine (this method, clay will grind 10% of water) or without hydraulic press (with 30% of water)



3. Setting and Drying

After bricks in form, indentation or perforation to the bricks.

Wet unit bricks will be drying in space or room with control temperature to make sure the bricks in complete dry.



4. Firing

Dry bricks, was compile in kiln to firing process with 600oC (temperature).

The main stage of firing are:

100 oc evaporation of water
400 0c burning of carbon and sulfur
900 – 1000 0c Strengthen the bricks
Maintaining control of the temperature is most important

Too rapid fire – over burning the external layer
Too slow – seriously impairs the strength and durability
Stronger brick such as Engineering Brick, are normally fired at higher temperature.


5. Packaging

After exiting the kiln, the brick is allowed to cool prior to handling.
Proper sorting and packaging of the brick after burning is extremely important.
Broken, twisted and otherwise mechanically defective brick are discarded at this stage.
Brick color and range is carefully monitored to assure a quality product.