Estudo da potencialidade do resíduo do polimento do porcelanato para fins de reutilização como agregado leve

Abstract

The study of industrially produced wastes has become quite common in the scientific world, due to the fact that these materials are commonly disposed of inappropriately, causing damage to the environment. Among these industrial residues, porcelain tile polishing waste has been gaining increasing attention due to its large scale manufacturing of this material. Porcelanato is a ceramic material with good technological properties, widely used nowadays thanks to its many benefits, mainly, its long durability, as its production grows more and more, and consequently increases the amount of waste generated. The residues are generated mainly in the polishing step, since this material requires an excellent surface finish, being composed mainly by the formulation of the porcelain and abrasive materials coming from the polisher. Therefore, today, there are many studies involving the incorporation of porcelain tile polishing residues again in the industrial production cycle. In this work, the potential of reuse of this residue as a lightweight aggregate was analyzed for its later incorporation in the manufacture of lightweight concrete, aiming at reducing costs and maintaining or even improving the properties of the concrete.For this, characterizations were made by X-ray diffraction, Xray fluorescence, granulometric analysis and thermal analysis, followed by the production of test specimens, which were subjected to different firing temperatures, and the morphology of the material after its expansion was analyzed for the pores formed by microscopy electronics. The results showed the formation of an increasingly porous and light material according to the increase in temperature, confirming an enormous potential for its use as a lightweight aggregate.