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Reuse of sugarcane bagasse ash (SCBA) to produce ceramic materials

Souza, A.E. ; Teixeira, S.R. ; Santos, G.T.A. ; Costa, F.B. ; Longo, E.

Journal of environmental management, 2011-10, Vol.92 (10), p.2774-2780 [Periódico revisado por pares]

Kidlington: Elsevier Ltd

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Título:
Reuse of sugarcane bagasse ash (SCBA) to produce ceramic materials
Autor: Souza, A.E. ; Teixeira, S.R. ; Santos, G.T.A. ; Costa, F.B. ; Longo, E.
Assuntos: Additive ; alcohols ; Alkalis ; aluminum ; Aluminum Silicates ; Animal, plant and microbial ecology ; Applied ecology ; Ash ; Ashes ; Bagasse ; Biological and medical sciences ; Bricks ; burning ; Cellulose - chemistry ; Ceramic industry ; Ceramic sintering ; Ceramics ; Ceramics - chemistry ; Clay ; Clay (material) ; Combustion ; Conservation, protection and management of environment and wildlife ; Diffraction ; Ethanol ; Evaluation ; Fundamental and applied biological sciences. Psychology ; General aspects ; Hot Temperature ; Industry ; iron ; Metals ; mixing ; Mullite ; Raw materials ; Recycling ; Reuse ; Saccharum - chemistry ; silica ; Sintering ; Sugar industry ; Sugarcane ; sugarcane bagasse ; Temperature ; thermal analysis ; Thermal energy ; Tiles ; Waste Management ; X-ray diffraction
É parte de: Journal of environmental management, 2011-10, Vol.92 (10), p.2774-2780
Notas: http://dx.doi.org/10.1016/j.jenvman.2011.06.020
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Descrição: Sugarcane bagasse ash (SCBA) is a residue resulting from the burning of bagasse in boilers in the sugarcane/alcohol industry. SCBA has a very high silica concentration and contains aluminum, iron, alkalis and alkaline earth oxides in smaller amounts. In this work, the properties of sintered ceramic bodies were evaluated based on the concentration of SCBA, which replaced non-plastic material. The ash was mixed (up to 60 wt%) with a clayed raw material that is used to produce roof tiles. Prismatic probes were pressed and sintered at different temperatures (up to 1200 °C). Technological tests of ceramic probes showed that the addition of ash has little influence on the ceramic properties up to 1000 °C. X-ray diffraction and thermal analysis data showed that, above this temperature the ash participates in the sintering process and in the formation of new important phases. The results reported show that the reuse of SCBA in the ceramic industry is feasible. ► The formation of mullite in kaolinite clay is inhibited by the addition of sugarcane bagasse ash. ► SCBA is non plastic material decreasing the linear shrinkage of ceramics during firing (replace sand). ► The amount of ash to be added is defined by the raw material quality and ash composition.
Editor: Kidlington: Elsevier Ltd
Idioma: Inglês

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Reuse of sugarcane bagasse ash (SCBA) to produce ceramic materials

Souza, A.E. ; Teixeira, S.R. ; Santos, G.T.A. ; Costa, F.B. ; Longo, E.

Kidlington: Elsevier Ltd

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