THE USE OF PETROLEUM POLYMER RESIN FOR REGULATION OF STRENGTH PROPERTIES OF SBS-MODIFIED BITUMENS

UDC 665.775.4

  • Stepanovich Yuriy Alekseevich – PhD student. Belarusian State Technological University (13a, Sverdlova str., 220006, Minsk, Republic of Belarus). E-mail: yurystepanovich@belstu.by

  • Tverdova Ekaterina Andreevna – student. Belarusian State Technological University (13a, Sverdlova str., 220006, Minsk, Republic of Belarus). E-mail: katch_ka@mail.ru

  • Shrubok Aleksandra Olegovna – PhD (Engineering), Senior Lecturer, the Department of Oil and Gas Processing and Petroleum Chemistry. Belarusian State Technological University (13a, Sverdlova str., 220006, Minsk, Republic of Belarus). E-mail: shrubok@belstu.by

DOI: https://doi.org/10.52065/2520-2669-2021-247-2-138-143

Key words: petroleum bitumen, polymer-bitumen binder, petroleum polymer resins, thermoplastic elastomer, penetration, softening temperature, strength characteristics.

For citation: Stepanovich Yu. A., Tverdova E. A., Shrubok A. O. The use of petroleum polymer resin for regulation of strength properties of SBS-modified bitumens. Proceedings of BSTU, issue 2, Chemical Engineering, Biotechnologies, Geoecology, 2021, no. 2 (247), pp. 138–143 (In Russian). DOI: https://doi.org/10.52065/2520-2669-2021-247-2-138-143.

Abstract

The analysis of scientific and technical information has been carried out. The addition of petroleum polymer resin into bitumen is one of the ways to improve the quality indicators of polymer-bitumen binders. Good compatibility of petroleum polymer resin with bitumen components and elastomers formed the basis for the development of new compositions of polymer-bitumen binders based on synthetic rubbers and petroleum resins. The purpose of the work was to study the effect of petroleum polymer resin additives on the strength properties of SBS-modified bitumen. To assess the strength properties of polymer-bitumen binders, the following indicators were used: temperature dependences of penetration, softening temperature, temperatures T31 and T800, penetration index. The article presents the research results of the petroleum polymer resin effect on the operational and strength characteristics of bitumen and SBSmodified binders. It was found that petroleum polymer resins have a structuring effect on bitumen and polymer-bitumen binders, increase their heat resistance and reduce penetration. The use of petroleum resin in the production of polymer-bitumen binders enhances the effect of the polymer component and allows you to regulate the strength characteristics of binders and consequently to influence the strength, shear resistance and rutting of asphalt concrete pavements.

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23.05.2021