Incorporação de rejeito de marmoraria em formulações de cerâmicas argilosas

Abstract

The extraction of ornamental stones has been increasing significantly to support construction industry. The presence of tailings in the environment of these rocks can cause siltation of rivers, respiratory diseases in living and among other problems. Based on this fact with the constant concern of environmental preservation, the use of industrial wastes as additives in the ceramic products production has been attracting a considerable interest from researchers in recent years and is becoming a common practice. This study aimed to evaluate the properties of ceramic bodies with marble quarrying tailings in different proportions, highlighting their physical and mechanical properties. The used materials were Clay, Kaolin and marble waste. It was analyzed 4 (four) different formulations, being the first one did not have waste addition for the comparison. The methodology used in the formulations is to add fractions of marble tailing into the clay, resulting in a consistency suitable for fabrication of specimens pressed. The results show the advantages of adding these wastes, characterized by a significant increasing in properties with the addition of the load.