Avaliação do desempenho de concreto asfáltico usinado a quente com incorporação de material fresado

Abstract

The scarcity of natural resources and the demand for alternative reuse of recycled materials has made recycling a slogan in the current scenario of global road construction. A floor milling yields a material with high economic value and excellent physical and mechanical properties that may be introduced in the composition of new asphalt mixtures. This study evaluated the mechanical mixtures machined hot with addition of different amounts of new binder behavior. The study material is from the BR-290's passage located between the municipalities of Rosario do Sul and São Gabriel. For characterization of the milled material was performed assays grading, bitumen extraction, Marshall stability and creep and tensile strength by diametral-compression bodies of cylindrical specimens molded in accordance with the proposals mixtures. According to the results, we obtained values of stability, creep and tensile strength by diametral compression, suitable for the application of milled material in asphalt mixtures for layers bearing.