Akkenzheyeva Anar, Haritonovs Viktors, Bussurmanova Akkenzhe, Merijs-Meri Remo, Imanbayev Yerzhan, Riekstins Arturs, Serikbayeva Akmaral, Sydykov Serik, Aimova Murshida, Mustapayeva Gulnara
Engineering Faculty, Yessenov University, 32 Microdistrict, Aktau 130003, Kazakhstan.
Faculty of Civil and Mechanical Engineering, Riga Technical University, 6A Kipsalas Street, LV-1048 Riga, Latvia.
Polymers (Basel). 2023 Dec 29;16(1):114. doi: 10.3390/polym16010114.
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.
根据不同国家的科学研究，在加工过程中从废旧轮胎（ELT）获得的橡胶粉可以改善沥青混合料的性能，从而延长路面的使用寿命。本文介绍了用工业橡胶废料对沥青进行改性。道路沥青改性被认为是最合适和最流行的方法之一。本研究论文描述了使用不同类型橡胶粉作为沥青改性剂的细节。在常规试验后测定了改性沥青的主要物理和力学特性：针入度和延度、软化点和弗拉斯脆点。为了获得具有改进性能特征的橡胶沥青混凝土混合料，还研究了橡胶沥青结合料的粘弹性和流变特性及其与聚合物沥青结合料的比较。研究结果表明，随着温度升高，所有研究的沥青体系的粘度、剪切应力和复数剪切模量值降低，相移角值增大，橡胶颗粒尺寸对沥青体系性能有更大影响。
