Highly Filled Rubber Plastics for Soft Road Surfaces: Effect of a Matrix Composition on the Mechanical Properties

Today, rubber crumb is used as the main component in the compositions for construction of soft road surfaces. This report presents the results of investigations on the mechanical properties of rubber–plastic composites containing 80 and 90 wt % of rubber crumb, based on different polyethylene matrices. It was established that, at high contents of rubber particles, there is no need to control the following characteristics of the matrix polymer to obtain the rubber–plastic composites deformable to at least 150%: the melt flow index, the content of HDPE or LDPE in the mixed matrix. The prospects for using the composites obtained were outlined.