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Cerâmica

versão impressa ISSN 0366-6913versão On-line ISSN 1678-4553

Resumo

GODINHO, K. O.; HOLANDA, J. N. F.  e  SILVA, A. G. P. da. Production and evaluation of technological properties of ceramic specimens based on the mix clay-recycled glass. Cerâmica [online]. 2005, vol.51, n.320, pp.420-429. ISSN 0366-6913.  http://dx.doi.org/10.1590/S0366-69132005000400018.

Three different kinds of waste glass powders were added to a clayey formulation used for the production of roof tiles. The influence of the glass composition, the added amount, the glass powder particle size, the glass - clay mixture technique and the sintering temperature upon the bending strength, the water absorption and the linear shrinkage was investigated. The glass additions increase the bending strength and the linear shrinkage while the water absorption decreases. The more the glass amount added to the formulation the more intense is this effect. The glass of TV cathodic ray tube is the most influent addition due to the high amount of flux in its composition. Particle size and mixture technique are related to the dispersion of the additive in the clayey formulation. The properties fulfilled the roof tiles, wall tiles, semi-gres and gres specifications at different firing temperatures.

Palavras-chave : clayey formulations; roof and floor tiles; waste glass recycling.

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