Avaliação do uso de resíduo de borracha moída de pneu como agregado de concreto asfáltico

Abstract

The aim of this work is to study the potential of the use of crushed tire rubber in partial replacement of the aggregates in asphalt mixtures by means of the dry process, obtaining a material with properties that allow its use in the paving. In order to achieve these objectives, the characterization tests of the materials used and the mixtures will be carried out first so that the object of study can be known. The influence of tire rubber particle percentages on the mixtures and the effect of the addition of tire rubber shavings under the various aspects that condition the good performance of a field mix through mechanical characterization. The conclusions of this work indicate that the sample chosen for studies of 5.58% of petroleum asphalt concrete and 0.5% of rubber, in general, obtained positive results when compared to the results of the reference sample, except for the mass loss test. where the modified sample had a slightly higher wear, but less than 1%. The findings also indicated that incorporating rubber from waste tires into asphalt concrete may be a viable alternative for recycling these wastes, but there is still plenty of information to be studied and analyzed.