Abstract
AbstractIn order to improve the performance of desulphurized rubber modified asphalt, especially the high‐temperature performance, epoxy resin was selected to modify the modified asphalt with three curing agent and accelerator components. The conventional properties, rheological properties, curing effect, process energy, and modification mechanism of epoxy resin—desulfurized rubber modified asphalt were analyzed. The experimental results show that the addition of epoxy resin to asphalt can all improve the high‐temperature performance of modified asphalt. The promoter component (PC) further improves the high‐temperature performance and reduces the viscosity. Among them, diaminodiphenyl sulfone and methylhexahydrophthalic anhydride in a 1:1 mass combination with epoxy resin modified asphalt not only had better high‐temperature performance, but also had excellent low‐temperature performance and ideal curing process. From the results, it can be seen that 5% epoxy resin with mixed curing agent with 3% PC had the best overall performance.
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