BITUMEN PREPARATIONS AND METHODS FOR PREPARING BITUMEN PREPARATIONS

Abstract

The invention relates to (variants) of asphalt compositions and methods for the preparation of asphalt compositions. Under the first design, the asphalt composition consists of oxidized bitumen and tar, wherein the oxidized bitumen is the product of a mixed oxidation process of tar and residue from the hydrocracking process of heavy oil residue feedstock. Under the second design, the asphalt composition consists of the composition of the first design, residue from the hydrocracking process of heavy oil residue feedstock, plasticizer, and styrene-butadiene copolymer.The method for preparing asphalt binder involves mixing tar and residue from the hydrocracking process of heavy oil residue to obtain a mixture of tar and residue from the hydrocracking process of heavy oil residue; oxidizing the resulting mixture in an oxidizing device to obtain oxidized bitumen; mixing the oxidized bitumen with tar to create the first bitumen product; and mixing the first bitumen product with plasticizers, residue from the hydrocracking process of heavy oil residue, and styrene-butadiene copolymer to create asphalt binder.The technical achievement of this patent is the creation of an asphalt compound in which residue from the hydrocracking process of heavy oil residue feedstock is used and the necessary performance characteristics of the asphalt compound for use in road construction and maintenance are maintained, including, but not limited to, suitable characteristics such as mass change after aging, anti-skid properties, fatigue resistance, and cold resistance.