红外光谱图与物质的结构有着十分严格的对应关系,可用于研究沥青在使用过程中的化学组成变化。通过对基质沥青、老化沥青和环氧树脂改性老化沥青的红外光谱对比分析,解析了沥青的老化机理和环氧树脂对沥青老化的抑制作用。 Infrared spectroscopy and the structure of the material has a very strict correspondence, can be used to study the chemical composition of asphalt in the course of change. By analyzing the infra-red spectra of asphalt, aging asphalt and epoxy resin modified asphalt, the aging mechanism of asphalt and the inhibition of epoxy aging on asphalt were analyzed.