Calculation of the Road Surface Made of a Solid Asphalt-Polymer-Sulphur Concrete Mixture for Fatigue Failure in Tension Bending
E. L. Radyukova, T. I. Zagoruiko, V. I. Bratchun
FSBEI HE «Donbas National Academy of Civil Engineering and Architecture»
Abstract: It is shown that the existing network of interurban roads in the Russian Federation with non-rigid road surfaces does not meet the increasing traffic intensity. At the same time, road organizations are moving towards improving the technical level and operational condition of existing roads, as well as the durability of road surfaces. It is established that to increase the durability of non-rigid road surfaces, the design speed of the vehicle, comfort, and safety of movement, it is necessary to use a two-layer structure consisting of a lower layer of solid asphalt-polymer-sulphur concrete mixture and an upper layer of hot coarse-grained asphalt concrete mixture. Using the IRR (Industry Road Regulations) 218.046-01 «Design of Non-rigid Road Surfaces», that is the method of calculating the resistance of monolithic layers to fatigue failure in tension bending, a strength coefficient for the monolithic two-layer structure of the covering is determined, which consists of a solid asphalt-polymer-serobeton mixture (15 cm) and hot coarse-grained asphalt concrete mixture (2 cm). The parameters of the technological temperature regimes during laying and compacting a two-layer asphalt concrete coating are provided. The economic efficiency of the two-layer coating structure is demonstrated, with one layer being a solid asphalt-polymer-sulphur concrete mixture, ensuring the tensile strength and resistance to fatigue failure of the two-layer asphalt concrete coating, while the coarse-grained asphalt concrete provides the specified wheel-to-road surface adhesion coefficient.
Keywords: hot solid asphalt-polymer-serobeton, coarse-grained asphalt concrete, coating strength, long-term stability of the coating, technology of construction of a two-layer non-rigid coating.
Pages: 51-56.
Link for citation: Radyukova, E. L.; Zagoruiko, T. I.; Bratchun, V. I. Calculation of the Road Surface Made of a Solid Asphalt-Polymer-Sulphur Concrete Mixture for Fatigue Failure in Tension Bending. – Text : electronic. – In: Proceeding of the Donbas National Academy of Civil Engineering and Architecture. – 2024. – Issue 2024-3(167) Buildings and structures using new materials and technologies. – Р. 51-56. – URL: https://donnasa.ru/publish_house/journals/vestnik/2024/2024-3(167)/st_09_radyukova_zagoruiko_bratchun.pdf (date of access: 15.10.2024). (in Russian)
Issue 2024-3 (167)Journal: Proceeding of the Donbas National Academy of Civil Engineering and Architecture
Publish house: Donbas National Academy of Civil Engineering and Architecture