Abstract
Employing a simple dry-pressing and sintering process, lightweight clay products with various physical, mechanical and thermal properties have been fabricated from mixtures of maplewood sawdust, clay and soda-lime glass grains prepared from recycled waste glass. Studies showed that thermal conductivity, compressive strength, and cold water absorption of the sintered sawdust-clay products are significantly modified by the addition of sawdust particles to the clay mixes. Studies also showed that portions of the clay particles can be replaced with soda-lime glass grains of similar sizes. These light-weight composite clay products have compressive strength in excess of 31 MN/m 2, thermal conductivity value in the range 0.21–0.39 W/m, °C and water saturation coefficient of about o.72. The fabricated clay products exhibit attractive characteristics as building materials and could contribute to energy conservation because of their high thermal insulation value.
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