The Development of a New Thermoplastic Elastomer (TPE)-Modified Asphalt

The use of (recycled) plastics and (waste) vulcanized rubber powder is the main polymer raw materials, composite organic additives are selected to fully combine with asphalt components. physical chemical reactions between different components completed in dynamic mixing, establishing a morphology structure similar thermoplastic elastomers (TPEs), highly asphaltized alloy material. TPE-modified not only significantly improves high-temperature stability base asphalt, but also has social economic value rational utilization resources turning waste into treasure. There very few studies on preparation modified high-viscosity formulations using plastic as modifiers. In this study, rubber, plastic, plasticizers were added TPE modifier developed through research new series functional formulations, process, its properties. Meanwhile, method rubber–plastic was determined. performance verified verification tests evaluate modification effect asphalt. test results showed that penetration, softening point, ductility, viscosity indexes proposed formulation, it met specification requirements for Rubber modifiers improved addition, had significant tackifying effect, 60 °C Brinell rotational much greater than microscopic mechanism newly analyzed by fluorescence microanalysis. swelled uniformly dispersed floc. network activated powder-modified more uniform dense, resulting good stable storage obtained. Through appropriate comprehensive obtained pavement application construction, providing theoretical basis promoting