ABSTRACT

Open graded asphalt mixes are one solution to the current demand for roads that offer quality, safety and comfort to users. However, these mixtures have problems of durability and mechanical strength. In this context, the aim of this research is to obtain a mixture that presents a balance between the permeability, acoustic and durability properties. This study evaluated mixtures with two different aggregate gradations with a maximum aggregate size of 9.5 mm and a polymer modified binder, through a series of laboratory testing. One of the two aggregate gradations was studied in Brazil (G1), and another gradation was based on a work done in the United States (G2). The research concluded that G2 mixture shows satisfactory performance related to acoustic, permeability and durability properties.