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Author(s): Alpha Ousmane TOURE, Falilou Mbacke SAMBE, Codou Gueye Mar DIOP, Rita Maria GHANTOUS
Pages: 1-7 Paper ID:202502-7474-IJCEE-IJENS Published: April, 2020
Abstract:-- The manufacture of sustainable bricks using waste materials is a topic of ongoing research in many countries. Unfired bricks made from industrial waste materials provide one promising approach. This study examined the potential to manufacture bricks for use in housing applications that are made using coal fly ash (CFA), calcium fluoride and calcium silicate (CFS). Moreover, in practice, the CFS comes from the reaction between calcium hydroxide and sodium fluosilicate. The bricks described in this paper were made at atmospheric pressure and room temperature. The materials were characterized using X-Ray Fluorescence, X-Ray Diffraction and Scanning Electron Microscopy. In addition, the bulk density, the compressive strength and the water absorption were measured and compared with common building bricks. The compressive strength of the brick specimen containing 75% of CFA at 28 day was 6.1 MPa and the water absorption was found to be about 23.8%.
Keywords: Calcium fluoride; calcium silicate; coal fly ash; industrial waste; unfired brick.
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