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Waste Management & Research, Vol. 25, No. 6,
566-571 (2007)
DOI: 10.1177/0734242X07080114
Effect of addition of pond ash and fly ash on properties of ash—clay burnt bricks
Ritwik Sarkar
Clay & Traditional Ceramics Division, Central Glass Ceramic Research Institute, Kolkata, India, ritwiksarkar{at}cgcri.res.in
Nar Singh
Clay & Traditional Ceramics Division, Central Glass Ceramic Research Institute, Kolkata, India
Swapan Kumar Das
Clay & Traditional Ceramics Division, Central Glass Ceramic Research Institute, Kolkata, India
Two industrial solid waste products generated by Indian coal-fired power plants, namely pond ash and fly ash, were used in combination with local clay to develop building bricks. The clay were mixed with the two different ashes in the range 10 to 90 wt.%, hydraulically pressed and fired at 1000°C. The fired products were characterized for various quality properties required for building bricks. The properties of the optimal compositions were compared with conventional red clay bricks including the developed microstructures and the comparative study generally showed that te ash-clay bricks were of superior quality to the conventional products.
Key Words: Fly ash • pond ash • ash-clay burnt brick • properties • microstructure • wmr 897—8
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