Explanations:
Tempering– It is processes of the preparation of a clay brick, clay is brought to a proper degree of hardness and made fit for the next operation of making a clay brick. • Digging is done in which soil is dug out and is thrown on level field to make it ready for the next operation. • Weathering is the process to provide exposure to the atmosphere for few weeks to few months in order to carryout softening in brick earth. • Blending is the process in which ingredients of brick earth in specified proportion if required is spread over the surface of brick earth.