The Use of Rubber-Polymer Composites in Bitumen Modification for the Disposal of Rubber and Polymer Waste
Akkenzheyeva A. Haritonovs V. Bussurmanova A. Merijs-Meri R. Imanbayev Y. Serikbayeva A. Sydykov S. Ayapbergenov Y. Jankauskas M. Trumpels A. Aimova M. Turkmenbayeva M.
November 2024Multidisciplinary Digital Publishing Institute (MDPI)
Polymers
2024#16Issue 22
The use of rubber-polymer composites ELTC (End of Life Tire Compound) for bitumen modification was investigated. ELTC contains not only devulcanized rubber from used car tires, but also used plastics (polymers) such as polyethylene (PE) and polypropylene (PP). ELTC is obtained using the method of rubber devulcanization using a selective catalyst that allows selectively decomposing sulfide bonds at relatively low temperatures, while preserving most of the macromolecular chains. The characteristics of the asphalt binder improved after the modification of ELTC. After modification, the base asphalt binder became more homogeneous, and the thermal stability of the base asphalt binder increased. ELTC is evenly distributed, the compatibility between the components of the modified asphalt binder is good, which proves the uniformity of the modified asphalt binders. The results show that all ELTC formulations improve the softening temperature and increase their resistance to plastic deformation in the summer.
bitumen modification , crumb rubber , differential scanning calorimetry , fluorescence microscopy , petroleum bitumen , thermogravimetric analyser
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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
Branch of LLP “KMG Engineering” “KazNIPImunaigas”, 35 Microdistrict, Section 6/1, Aktau, 130000, Kazakhstan
JSC “Polylema”, Jegaines Str. 8, Kauno District, Biruliskes, LT-54469, Lithuania
LLC “Rubbintec”, Drosmes 2-34, Jurmala, LV-2015, Latvia
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
Branch of LLP “KMG Engineering” “KazNIPImunaigas”
JSC “Polylema”
LLC “Rubbintec”
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