Physical-Mechanical Characteristics in Masses for White Ceramics Obtained with Flat Glass Waste

Abstract

The production of urban solid wastes has grown surprisingly in last years, turning into one of biggest challenges for the contemporary society. Among these wastes, the glass waste can be highlighted bearing in mind that, for being totally returned to the productive chain without any loss of mass in the material, it has been receiving several incentives to help on development of alternative and green technologies which aim an adequate destination to this kind of material. Thereby, this research proposes the use of the flat glass waste like a flux, in a partial replacement to the feldspar, in the composition of masses for white ceramics, aiming to obtain products with physical-mechanical similar properties to the industrial products. To do this study, standard specimens were initially prepared, each one with different percentages of glass, to then be burned under temperatures between 1200 and 1250 degree Celsius. Later, the following tests were made: flaring color, linear retraction, apparent porosity and rupture module to flexion in three points, according to the ABNT/NBR 15097/2004 rules. The obtained values were compared with the suggested values for industrial masses, confirming the possibility to apply flat glass waste like a flux in masses to white ceramics, as an alternative to reuse of these materials.