LDPE is selected for making modified asphalt to analyze the mechanism of PE modified asphalt in view of the climatic characteristic of high temperature in the Shanghai area.

鉴于上海地区高温的气候特点，选择树脂类改性剂ldpe制作改性沥青，分析了PE改性沥青的改性机理。

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By the way of low temperature energy falling test research on the properties of PE and PE complex modified asphalt, a systematical study on the pavement performance of the mixtures is made.

使用低温落体能量试验作为评价改性沥青低温性能的方法，研究了聚乙烯及其复合改性沥青混合料的路用性能，指出了PE复合改性是一种改善沥青性能的行之有效的方法。

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