沥青结合料物理硬化现象研究

方伽俐¹   孙立军²

（上海市市政工程管理处¹，同济大学交通运输学院²）

摘  要：现行Superpave结合料低温试验的温度条件导致沥青产生显著的物理硬化现象。本文在大量试验数据的基础上，对沥青结合料物理硬化的规律进行了研究，并讨论了这一现象对结合料低温试验结果的影响。

关键词：物理硬化，沥青结合料，低温

A Study on Physical Harding of Asphalt Binder

FANG Jia-li，SUN Li-jun

Abstract: According to the SUPERPAVE^TM specification, low-temperature tests for asphalt binders are performed under a low temperature condition, which leads to severe physical harding as a side-effect. In this paper, emphasis is put on the laws of physical harding, based on which advises on binder test protocol are proposed.

Key Words: Physical Harding, Asphalt Binder, Low Temperature