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Please use this identifier to cite or link to this item: http://repositorio.ufba.br/ri/handle/ri/5525

Title: Structural ceramics made with clay and steel dust pollutants
Other Titles: Applied Clay Science
Authors: Machado, A. T.
Valenzuela-Diaz, F. R.
Souza, Carlos Alberto Caldas de
Lima, Luiz Rogério Pinho de Andrade
Keywords: Clay;Ceramic;Electric arc furnace dust;Toxic elements stabilization
Issue Date: 2011
Abstract: Electric arc furnace steel dust is a by-product of the steelmaking process and contains high amounts of the iron and zinc and significant amounts of lead, chromium, and cadmium. Metal recycling however, is not always economically feasible, especially due to the complex mineralogical composition of this material. In this study an application of this material is presented. Ceramics were produced with clay and variable amounts of steel dust. The bulk material was fired between 800 and 1100 °C. The influence of the composition and the processing temperature on the mechanical strength, linear shrinkage, water absorption, apparent density and bending strength and metal leaching of the ceramic samples was investigated. A blend of clay with up to 20% dust yielded ceramics with limited metal contamination risk and may thus be used for structural ceramics production.
Description: Acesso restrito: Texto completo. p. 503-506
URI: http://www.repositorio.ufba.br/ri/handle/ri/5525
ISSN: 0169-1317
Appears in Collections:Artigos Publicados em Periódicos (PEI)

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