生物基环氧冷补沥青液开发与混合料性能研究.

Epoxy soybean oil(ESO) is adopted as a reactive diluent to develop a high-performance cold patch asphalt liquid for rapid repair of pavement p让s. The ratios of epoxy soybean oil, epoxy resin, and curing agent were optimized through tensile tests. Secondly, tensile tests and viscosity tests were conducted to determine the ratios among matrix asphalt, bio-based epoxy system, and diluent in BECPAL・ Additionally, the microscopic morphology changes during the BECPAL curing process were observed using a fluorescence microscope・ Lastly, the road performance of the bio-based epoxy cold patch asphalt mixture (BECPMA) was evaluated and compared with hot mix asphalt(HMA) and conventional solvent-based cold patch asphalt mixture(CPMA)・ The results showed that the retention time of BECPAL developed in this study can reach 60 min, and ESO can reduce the usage of traditional diluents and epoxy resins・ BECPMA is characterized by high strength and fast curing speed, reaching 11.59 kN after curing at room temperature for 2 h・ Compared to HMA and CPMA, BECPMA exhibits excellent high-temperature performance, with improvements also noted in low-temperature performance and water stability・ BECPMA can be used for rapid repair of road potholes. [ABSTRACT FROM AUTHOR]