Adhesion and wetting of road bitumen on mineral materials

Abstract

The article covers the results of a study of adhesive and wetting (wetting edge angle) characteristics of road bitumen compositions. New ingredients for road bitumen have been selected to increase its adhesive ability. Based on additives such as oil sludge, gossypol resin and technical sulfur, bitumen compositions with improved adhesive characteristics have been obtained. The influence of oil sludge, gossypol resin and industrial sulfur on the structural properties of road bitumen has been studied. Based on the chemical theory that provides adhesion of additives with mineral materials, a number of scientific studies of bituminous compositions on the strength of adhesion to the surface of various mineral materials have been carried out. Based on the results obtained, it was revealed that on the basis of the finished road bitumen grade BND 60/90 and the D-7 additive, a bituminous composition that has the highest adhesion strength to the surface of various mineral materials has been obtained.