Incorporação de resíduos em argamassas expansiva para lavra de rochas ornamentais.

Abstract

The mining industry and processing of ornamental rocks has been cited by environmentalists as a major source of contamination and pollution of the environment, due to the enormous amount of waste generated and which often are released directly in the ecosystems. On the other hand the use of expansive grout for demolition and cutting of rocks, has been one of the most sought after cutting technologies used by extractive industries, for its numerous advantages, compared to other cutting technologies used in the ornamental rock mining. So the aim of this work is to study the feasibility of incorporation into the expansive mortar demolition waste from mining processes and processing of ornamental rocks beyond the kaolin and gypsum. For both tests were carried out to characterize two expansive commercial mortars of waste generated in the processes of mining and processing kaolin and granite plaster, by evaluating the influence of percentage of incorporation and the granulometry of the same expansive mortar performance. In conclusion-if that is possible the incorporation of kaolin, gypsum and waste from processing of Granites and granite drilling dust, as cargo on the expansive mortar, without considerable losses of the expansion pressure for use in cutting of rocks in the ornamental rock mining.