Bricks have been used in building construction since civilization and are one of the least expensive clayey materials used in a variety of structural and architectural constructions. Traditionally bricks are made from locally available soil and are heavy leading to higher transportation and labor charges. They are dense and are thus not very good insulators. Besides they have low water absorption and rate of evaporation and thus do not contribute to cooling in buildings. A new brick has been developed by addition of prepared crop residues such as sawdust, wheat straw and paddy straw to the brick earth. The developed brick is more porous, has lower dry weight, higher water absorption and rate of evaporation than conventional bricks. The new brick will provide better insulation in buildings, higher cooling effect in evaporative cooled storage structures and requires much lower transportation and labor charges for handling in comparison to the existing bricks.
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