Análise de desempenho do concreto com a substituição parcial do agregado graúdo por resíduo de cerâmica vermelha

Abstract

The construction industry is a major generator of waste, called construction and demolition waste (CDW). That is why there is a concern with the correct destination of this waste and the generation of environmental impacts that result from it. Given that natural resources are becoming increasingly scarce, it is desirable that the reuse of waste in the development of materials becomes a recurring initiative in both the private and public sectors. These alternatives can contribute to sustainable development in civil construction. The use of red ceramic waste (RCV) in concrete, in the substitution of coarse aggregates, gravel, is one of the possibilities of reusing CDW. Given this, this work aims to evaluate the possibility of using RCV in the partial replacement of coarse aggregate in conventional concretes. Traces were elaborated for reference concretes, and with partial replacement of coarse aggregate, in different percentages, by RCV. Subsequently, tests were performed on both fresh and hardened concrete to evaluate their performance. At the end of the project all the results obtained were analyzed, and it was concluded that there is a loss of strength in the concrete as the RCV increases in themixture, there is also a greater absorption of water in the concrete because the vermelite ceramic is a more porous material than the gravel, so this concrete can be used for sealing and counterfloor, without structural purposes.