Recycling of Benefited Blast Furnace Sludge into Red Clay Ceramic

Abstract:

The blast furnace sludge is a waste generated after the washing step of the blast furnace gas. The reuse of this waste in the steelmaking process itself is quite problematic. This study aims to analyze the possibility of the incorporation of a type of blast furnace sludge, benefited by a process that uses helical separators, into red ceramic. Specimens were prepared by uniaxial pressing at 20 MPa and then fired at 750°C and 950°C. The evaluated technological properties were linear shrinkage, water absorption and flexural rupture strength. The results showed that the benefited blast furnace sludge significantly influences the evaluated properties, by impairing the linear shrinkage and the water absorption but improving the mechanical strength.

• Periodical: Materials Science Forum (Volumes 775-776)
• Pages: 607-612
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.775-776.607
• Online since: January 2014
• Authors: Carlos Maurício Fontes Vieira, Sergio Neves Monteiro, Mariana Miranda Abreu, Aline Vieira Riter, Fernando Vernilli, Veronica Scarpini Candido
• Keywords: Blast Furnace Sludge, Red Ceramic, Steel-Making Industry, Waste-Recycling

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