Recycling of sugarcane bagasse ash waste in the production of clay bricks.

Autor: Faria KC; Northern Fluminense State University, Laboratory of Advanced Materials, Group of Ceramic Materials, Av. Alberto Lamego 2000, Campos dos Goytacazes-RJ, Brazil., Gurgel RF, Holanda JN
Jazyk: angličtina
Zdroj: Journal of environmental management [J Environ Manage] 2012 Jun 30; Vol. 101, pp. 7-12. Date of Electronic Publication: 2012 Mar 02.
DOI: 10.1016/j.jenvman.2012.01.032
Abstrakt: This work investigates the recycling of sugarcane bagasse ash waste as a method to provide raw material for clay brick bodies, through replacement of natural clay by up 20 wt.%. Initially, the waste sample was characterized by its chemical composition, X-ray diffraction, differential thermal analysis, particle size, morphology and pollution potential. Clay bricks pieces were prepared, and then tested, so as to determine their technological properties (e.g., linear shrinkage, water absorption, apparent density, and tensile strength). The sintered microstructure was evaluated by scanning electron microscopy (SEM). It was found that the sugarcane bagasse ash waste is mainly composed by crystalline silica particles. The test results indicate that the sugarcane bagasse ash waste could be used as a filler in clay bricks, thus enhancing the possibility of its reuse in a safe and sustainable way.
(Copyright © 2012 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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