研究论文

聚酯纤维沥青胶浆及混合料路用性能

  • 董刚 ,
  • 郑南翔 ,
  • 王甲飞
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  • 1. 长安大学公路学院, 西安710064;
    2. 西安市政设计研究院有限公司, 西安710068
董刚,博士研究生,研究方向为道路工程,电子信箱:ykdonggang@126.com

收稿日期: 2014-10-14

  修回日期: 2014-12-30

  网络出版日期: 2015-03-03

基金资助

高等学校博士学科点专项科研基金(博导类)项目(20120205110003)

Pavement performance of polyester fiber asphalt mortar and its mixture

  • DONG Gang ,
  • ZHENG Nanxiang ,
  • WANG Jiafei
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  • 1. School of Highway, Chang'an University, Xi'an 710064, China;
    2. Xi'an Municipal Engineering Design & Research Institute Co., Ltd., Xi'an 710068, China

Received date: 2014-10-14

  Revised date: 2014-12-30

  Online published: 2015-03-03

摘要

为研究聚酯纤维沥青混合料的性能,引入木质素纤维作对比,对两种纤维的技术指标进行测试;通过动态剪切流变试验、弯曲梁流变试验、车辙试验、低温弯曲小梁试验、冻融劈裂试验和四点弯曲疲劳试验分别对无纤维和掺加聚酯纤维、木质素纤维的沥青胶浆和沥青混合料性能进行试验研究,并分析其改善机制。结果表明,掺加纤维能显著地改善沥青混合料的路用性能,聚酯纤维沥青混合料比木质素纤维混合料具有更优良的路用性能。

本文引用格式

董刚 , 郑南翔 , 王甲飞 . 聚酯纤维沥青胶浆及混合料路用性能[J]. 科技导报, 2015 , 33(3) : 49 -53 . DOI: 10.3981/j.issn.1000-7857.2015.03.007

Abstract

To study the performance of asphalt mixture with polyester fiber, polyester fiber is contrasted with lignin fiber. The test is taken for comparing the performances of the two fibers. By the tests of dynamic shear rheometer (DSR) and bending beam rheometer (BBR),the performance of polyester fiber asphalt mortar is studied. By the rutting test, low-temperature bending beam test, water stability test, and four point bending beam fatigue test, the pavement performance and the improvement mechanism of the asphalt mixture without fiber, the asphalt mixture with polyester fiber and the asphalt mixture with lignin fiber are comprehensively analyzed. The results show that the polyester fiber can evidently enhance the performance of the asphalt mixture, and that the mixture with polyester fiber obtains a better performance than the mixture with lignin fiber.

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