Study of the Viscoelastic and Rheological Properties of Rubber-Bitumen Binders Obtained from Rubber Waste
Akkenzheyeva A. Haritonovs V. Bussurmanova A. Merijs-Meri R. Imanbayev Y. Riekstins A. Serikbayeva A. Sydykov S. Aimova M. Mustapayeva G.
January 2024Multidisciplinary Digital Publishing Institute (MDPI)
Polymers
2024#16Issue 1
According to scientific research from different countries, crumb rubber obtained from end-of-life tires (ELT) during processing can improve the properties of the asphalt mixture, thereby extending the service life of the road surface. This paper presents the modification of bitumen with industrial rubber waste. The modification of bitumen for roads is considered one of the most suitable and popular approaches. This research paper describes the details of using different types of crumb rubber as bitumen modifiers. The modified bitumen’s main physical and mechanical characteristics were determined after conventional tests: penetration and ductility, softening point, and Fraas brittleness point. In order to obtain a rubber–asphalt concrete mixture with improved performance characteristics, the viscoelastic and rheological properties of rubber–bitumen binders and their comparison with polymer–bitumen binders were also studied. The research results show that with increasing temperature, the values of viscosity, shear stress and complex shear modulus of all studied bitumen systems decrease, the values of the phase shift angle increase, and the size of the rubber particles has a greater influence on the properties of bitumen systems.
crumb rubber , modification , petroleum bitumen , physical and mechanical characteristics , rheological properties
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Engineering Faculty, Yessenov University, 32 Microdistrict, Aktau, 130003, Kazakhstan
Faculty of Civil and Mechanical Engineering, Riga Technical University, 6A Kipsalas Street, Riga, LV-1048, Latvia
Science and Technology Faculty, Yessenov University, 32 Microdistrict, Aktau, 130003, Kazakhstan
Faculty of Natural Sciences and Technologies, Riga Technical University, 3 Paula Valdena Street, Riga, LV-1048, Latvia
Laboratory of Petrochemical Processes, RSE «Institute of Combustion Problems», Bogenbay Street, 172, Almaty, 050012, Kazakhstan
LLP “JV“ CASPI BITUM Aktau Bitumen Plant, Industrial Zone 5, Building, 65, Aktau, 130000, Kazakhstan
Engineering Faculty
Faculty of Civil and Mechanical Engineering
Science and Technology Faculty
Faculty of Natural Sciences and Technologies
Laboratory of Petrochemical Processes
LLP “JV“ CASPI BITUM Aktau Bitumen Plant
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