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老化对沥青结合料粘弹性的影响
引用本文:田小革,郑健龙,张起森.老化对沥青结合料粘弹性的影响[J].交通运输工程学报,2004,4(1):3-6.
作者姓名:田小革  郑健龙  张起森
作者单位:长沙理工大学,公路工程学院,湖南,长沙,410076
基金项目:国家自然科学基金项目(50178012)
摘    要:沥青结合料的老化是影响沥青路面使用性能的一个重要因素,应用旋转薄膜烘箱(RTFO)对沥青进行短期老化,通过压力老化仪(PAV)对经RTFO短期老化的沥青进行不同时间的老化,对老化沥青进行系统试验,研究老化对沥青结合料粘弹性的影响。结果表明老化使沥青结合料的粘性逐渐降低,增强了沥青结合料的抗变形能力(高温稳定性),但抗疲劳开裂性能下降。

关 键 词:道路工程  沥青结合料  老化  粘弹性  弯曲梁流变仪  BBR  动态剪切流变仪  DSR
文章编号:1671-1637(2004)01-0003-04
修稿时间:2003年6月25日

Effect of aging on viscoelastic performance of asphalt binder
TIAN Xiao-ge,ZHENG Jian-long,ZHANG Qi-sen School of Highway Engineering,Changsha University of Science and Technology,Changsha ,China.Effect of aging on viscoelastic performance of asphalt binder[J].Journal of Traffic and Transportation Engineering,2004,4(1):3-6.
Authors:TIAN Xiao-ge  ZHENG Jian-long  ZHANG Qi-sen School of Highway Engineering  Changsha University of Science and Technology  Changsha  China
Institution:TIAN Xiao-ge,ZHENG Jian-long,ZHANG Qi-sen School of Highway Engineering,Changsha University of Science and Technology,Changsha 410076,China
Abstract:The aging of asphalt binder is an important factor to asphalt pavement service property. The paper applied short-term age to asphalt binder by using RTFO, then aged the residue various hours by using PAV, and studied the effects of aging on viscoelastic performance of asphalt binder by using bending beam rheometer and dynamic shear rheometer. The results indicate that the aging of asphalt binder decreases its viscous performance and enhances its elastic performance, so the resistance to deformation is enhanced while the anti-fatigue cracking capacity decreases. 4 tabs, 6 figs, 8 refs.
Keywords:road engineering  asphalt binder  aging  viscoelasticity  bending beam rheometer (BBR)  dynamic shear rheometer (DSR)  
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