中文摘要：

橡胶沥青的老化过程比较复杂，采用薄膜烘箱老化和压力罐老化室内试验模拟橡胶沥青在生产、施工以及使用期间发生的短期老化和长期老化过程，并采用在结构分析中应用最为广泛的红外光谱法分析橡胶沥青老化后的微观结构变化，从而进一步解释橡胶沥青的老化机理。

英文摘要：

Rubber asphalt ageing process is more complicated. We could adopt TFOT and PAV test to simulate the process of the short-term aging and long-term aging during production,construction and using. We use the method of FFIR which is the most extensively used spectrogram technology in struetured analysis field to analyze the change of microstructure of rubber asphalt after aging,to further explain the mechanisms of rubber asphalt aging.