Building Materials: Stone as building material; Requirement of good building stones, Dressing of stones, Deterioration and Preservation of stonework. Bricks; Classification, Manufacturing of clay bricks, Requirement of good bricks. Field and laboratory tests on bricks; compressive strength, water absorption, efflorescence, dimension and warpage.Cement Concrete blocks, Autoclaved Aerated Concrete Blocks, Sizes, the requirement of good blocks. Timber as construction material.Fine aggregate: Natural and manufactured: Sieve analysis, zoning, specify gravity, bulking, moisture content, deleterious materials.Coarse aggregate: Natural and manufactured: Importance of size, shape and texture. Grading of aggregates, Sieve analysis, specific gravity, Flakiness and elongation index, crushing, impact and abrasion tests.
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