Paper Title:

Use of Ornamental Rock Waste in Porcelain Tile

Periodical Materials Science Forum (Volumes 591 - 593)
Main Theme Advanced Powder Technology VI
Edited by Lucio Salgado and Francisco Ambrozio Filho
Pages 454-458
DOI 10.4028/www.scientific.net/MSF.591-593.454
Citation A.J. Souza et al., 2008, Materials Science Forum, 591-593, 454
Online since August, 2008
Authors A.J. Souza, Bruno C.A. Pinheiro, S.J.G. Sousa, J.N.F. Holanda
Keywords Ceramic Tile, Recycling, Rock Waste
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Abstract

The ornamental rock industry generates huge amounts of waste in form of fine powder, demanding adequate alternatives for its final disposal. The possibility of using ornamental rock waste as a flux in porcelain tile has been assessed. The porcelain tile formulations are constituted mainly by kaolin, feldspar and quartz. The waste was added to a typical porcelain tile body, replacing the sodic feldspar by up to 15 wt. %. The prepared pastes were fired of 1240°C using a fast-firing cycle. The specifications of porcelain floor tile in terms of physical properties were achieved.