Ufa, Ufa, Russian Federation
Ufa, Ufa, Russian Federation
Federal State Budgetry Educational Institution of Higher Education "Ufa University of Science and Technology"
FSBEI of HE «Bashkir State University» Ufa (Department of State Law, Associate Professor)
from 01.01.1997 to 01.01.2002
Ufa, Ufa, Russian Federation
employee
Ufa, Ufa, Russian Federation
UDC 620.22
The article proposes relevant technical and technological solutions that increase the durability of asphalt concrete road pavements. By introducing functional polymer additives – butadiene-styrene copolymers – into the bitumen component, it is possible to reduce the temperature sensitivity of asphalt concrete pavements, increase their hardness in the summer season and reduce their brittleness in winter. The optimised addition of polymer modifiers contributes to the formation of stable supramolecular complexes in asphalt concrete. The quality of the finished composition is significantly affected by the characteristics of all components - mineral powder, sand, crushed stone, bituminous binder and macromolecular additives of functional polymers. During the preparation of the asphalt concrete mixture, it is important to maintain constant process parameters (temperature, mixing intensity, etc.). A supramolecular complementary three-dimensional network formed in the bituminous binder with the participation of composite butadiene-styrene copolymers gives road surfaces additional strength, wear resistance, heat resistance and the ability to undergo highly elastic deformations in the temperature range from -70ºC to +90ºC. Asphalt concrete pavements based on modified polymer-bitumen binders increase the performance of motorway roadbeds and resistance to plastic deformation (shearing, rutting).
road, road bitumen, functional polymers, asphalt concrete coatings
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