Abstract
Technical feasibility of making good quality building bricks from widely distributed ferruginous and/or acidic clays of north eastern region has been examined. Traditionally, the clay materials available in the region yield low strength porous bricks. The present study revealed that bricks possessing compressive strength in the range of 75 to 300 kg.cm−2 and water absorption 12–16 percent can be produced from alluvial and yellowish red mountain clays. Judicious control of the mix composition for safe drying and firing of the bricks at optimum temperatures was found as a major prerequisite for the production of bricks conforming to BIS Specifications.
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