Using of ethylene-vinyl acetate copolymer for manufacture of road surfaces

Abstract

The trend of European road companies to use an ethylene-vinyl acetate (EVA) copolymer is related to its ability to provide the necessary properties for the road surface, as well as its comparative cheapness and safety. The paper presents a study of bitumen modified by EVA, changes in the physicochemical properties of binders modified by EVA in concentrations from 1 to 10% and the influence of the number of vinyl acetate groups in the polymer composition on the properties of bitumen have been studied. Changes in physicochemical properties of bitumen in dependence on the molecular weight of EVA have been explored, as well as physicomechanical properties of asphalt mixtures with different contents of EVA have been evaluated.