Efeitos da incorporação de resíduos da mineração nas propriedades físicas, mecânicas e de durabilidade em pavimentos intertravados.

Abstract

The mining sector in Brazil is of paramount importance to the country, having great economic and social value, as it is responsible for generating direct and indirect jobs, thus contributing to its development. On the other hand, it is one of the sectors that most generate tailings, causing environmental impacts, in the air, in the water, polluting surface and underground water resources, and in the soil, in addition to proliferating its erosion and contamination processes The proper management of these residues through their use in civil construction, more specifically in alternative materials, is one of the ways to minimize these impacts on the environment. In this sense, this work aims to propose an appropriate destination for mining waste, reusing them in concrete as a partial replacement of fine aggregate used in interlocking. First, the physical, chemical and mineralogical characterization of the residues and conventional materials will be carried out, as well as the characterization of the coarse aggregate and the binder according to ABNT regulations. Then, the study of the conventional trace will be carried out, using the experimental dosage method, which will serve as a comparative basis when the partial replacement of residues from the results of the RCS and absorption tests. The proportions chosen for incorporating the waste surfaces will be based on experimental planning and analysis of response. Having defined the appropriate proportions of waste based on the RCS and absorption, the behavior of pavers will be analyzed for durability. With the results, the performance, resistance and technical and economic viability of the studied concrete will be analyzed for the purposes of interlocking paving.