Análise de desempenho de concreto com agregado graúdo reciclado e borracha triturada

Abstract

In this study, we aim to analyze the strength and absorption of concrete with the addition of rubber extracted from old tires in relation to the fine aggregate and by replacing the coarse aggregate with the residue of concrete specimens, compared to conventional concrete, i.e., without the addition of rubber. For this study, rubber and concrete specimen residue were used, with the entire coarse aggregate being replaced by the residue, while the rubber was added in relation to the fine aggregate at a ratio of 5%, 10%, and 15%. Based on the tests performed and the results obtained, it is possible to analyze and evaluate the performance of the concrete. Based on this analysis, it is possible to determine whether or not its use is possible compared to conventional concrete, with a view to reducing waste in construction and removing tires that would otherwise contribute to environmental pollution. Analyzing the results obtained, it is possible to note a slight tendency towards an increase in absorption in the concrete with the addition of rubber compared to the concrete without rubber, while at the same time, as the percentage of rubber added to the concrete increases, the compressive strength tends to decrease.