不同高模量改性沥青高温性能及温度敏感性研究

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摘 要：为了探究不同类型高模量剂对沥青高温性能及温度敏感性能的影响，使用三种类型的高模量剂制备高模量改性沥青。分别对三种改性沥青进行DSR试验，同时采用复数指数法评价沥青的温度敏感性。结果表明，加入高模量剂可以改善沥青的高温性能和温度敏感性。

关键词：高模量改性沥青;温度敏感性;动态剪切流变试验

中图分类号：TU414     文献标志码：A     文章编号：1003-5168（2022）2-0106-03

DOI：10.19968/j.cnki.hnkj.1003-5168.2022.02.025

Study on High Temperature Performance and Temperature Sensitivity of Modified Asphalt with Different High Modulus

CHEN Pengfei    LIU An

（North China University of Water Resources and Electric Power， Zhengzhou 450000，China）

Abstract：In order to explore the effects of different types of high modulus agents on the high temperature performance and temperature sensitivity of asphalt， three types of high modulus agents were used to prepare high modulus modified asphalt. DSR tests were carried out on three kinds of modified asphalt， and the complex index method was used to evaluate the temperature sensitivity of asphalt. The results show that adding high modulus agent can improve the high temperature performance and temperature sensitivity of asphalt.

Keywords：high modulus modified asphalt; temperature sensitivity;dynamic shear rheological test

0 引言

高模量沥青混凝土路面主要是通过提高沥青路面的动态模量，从而增强路面抵抗塑性变形能力[1]。（剩余2895字）