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DHANASEKAR, M.; THOMAS, D.; TIMM, M. Properties of cylindrical bricks made from industrial wastes. In: INTERNATIONAL SEMINAR ON STRUCTURAL MASONRY FOR DEVELOPING COUNTRIES, 5., 1994, Florianópolis. Anais... Florianópolis, 1994. p. 1-10.
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Abstract

The use of two industrial wastes, viz, fly ash (pulverised fuel ash from thermal power station) and red mud (sediment deposited from bauxite ore in aluminium industry) in the manufacture cif burnt building bricks was investigated. Bricks were manufactured by the extrusion process using a de airing pug mill. The red mud exhibited negligible plasticity which resulted in the use of 30% clay (kaolin) to enable the test specimens to be extruded. Cylindrical specimens of height to diameter ratio of two were manufactured and fired in a furnace at 1000°C for eight hours and tested for several parameters. Good quality bricks were manufactured from fly ash. The bricks were found to possess low density, ideal water absorption properties and sufficient strength for the use in buildings.Red mud contributed adversely to the strength, shrinkage and density of the bricks.
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