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On-line version ISSN 1678-4553
SANTOS, I. M. G. et al. Effect of solid waste addition in the decrease of black core occurrence in red ceramic. Cerâmica [online]. 2005, vol.51, n.318, pp.144-150. ISSN 1678-4553. http://dx.doi.org/10.1590/S0366-69132005000200012.
One of the problems of the ceramic industry is the high level of finished product loss, due to ceramic processing, leading to cracks and materials out of conformity. In this way it is necessary to recycle these solid wastes in order to reduce the environment impact. In this work, the solid waste of two red ceramic industries were milled and incorporated to the formulation of the industry, leading also to an economic gain. Incorporation percentages varied from 10% to 30 wt %. Samples were processed by extrusion and sintered at 950 ºC and 1000 ºC. The results indicate that the addition led to an improvement of sample properties, due to the decrease of black core formation, producing samples with higher uniformity and lower porosity.
Keywords : solid waste; recycling; red ceramic; black core.