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蒙脱土改性沥青混合料低温抗裂性能研究
引用本文:朱书景,刘定军,薛永杰.蒙脱土改性沥青混合料低温抗裂性能研究[J].公路,2007(9):150-152.
作者姓名:朱书景  刘定军  薛永杰
作者单位:1. 武汉大学资源与环境科学学院,武汉市,430072
2. 广州市水利局珠江三防建设办公室
基金项目:武汉大学创新基金项目(205270026)
摘    要:将蒙脱土掺配在沥青混凝土中,可以改善沥青混合料的物理力学性能,提高路面工程质量。为了确保蒙脱土改性沥青混合料的低温抗裂性能,就必须用试验方法来评定它在低温下的性能。通过两种武汉市售蒙脱土和实验室纯化蒙脱土,采用压缩应变能、弯曲应变能的方法,进行蒙脱土改性沥青低温性能研究。通过室内试验,证明蒙脱土改性沥青混合料能够有效改善低温抗裂性能。

关 键 词:蒙脱土改性沥青混合料  低温抗裂性能  压缩应变能  弯曲应变能
文章编号:0451-0712(2007)09-0150-03
修稿时间:2007-03-15

A Study on Low Temperature Anti-Cracking Performance of Montmorillonite Modified Asphalt Mixture
ZHU Shu-jing,LIU Ding-jun,XUE Yong-jie.A Study on Low Temperature Anti-Cracking Performance of Montmorillonite Modified Asphalt Mixture[J].Highway,2007(9):150-152.
Authors:ZHU Shu-jing  LIU Ding-jun  XUE Yong-jie
Institution:1. School of Resource and Environment Science, Wuhan University, Wuhan 430072, China; 2. Hydralic Department of Guangzhou City, Guangzhou 510600, China
Abstract:Mixing montmorillonite with asphalt concrete can improve mechanical property of asphalt mixture and enhance quality of pavement engineering.In order to assure low temperature anti-crack performance of montmorillonite modified asphalt mixture,a test method must be adopted to evaluate its low temperature performance.The methods of compressing strain energy and bending strain energy are adopted to study low temperature performance of montmorillonite modified asphalt with two different montmorillonites by indoor tests.The results show distinctly the effectiveness of montmorillonite modified asphalt mixture in the improvement of low temperature anti-cracking performance .
Keywords:montmorillonite modified asphalt mixture  low temperature anti-cracking performance  compressing strain energy  bending strain energy
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