中文核心期刊
CSCD来源期刊
中国科技核心期刊
RCCSE中国核心学术期刊

重庆交通大学学报(自然科学版) ›› 2010, Vol. 29 ›› Issue (3): 394-397.

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Superpave沥青混合料低温抗裂性评价方法

张彩利1,孟庆营2,3,韩森3   

  1. 1.河北工业大学土木工程学院, 天津 300132;2.天津市政工程研究院, 天津 300074; 3.长安大学公路学院, 陕西 西安 710064
  • 收稿日期:2010-01-22 修回日期:2010-03-03 出版日期:2010-06-15 发布日期:2015-01-22
  • 作者简介:张彩利(1978—), 女, 山西永济人, 讲师, 硕士, 主要从事道路工程材料方面的研究。E-mail:zhangcailimeng@163.com。

Evaluation Method of Low-Temperature Anti-cracking Performance of Superpave Asphalt Mixture

ZHANG Cai-li1,MENG Qing-ying2,3,HAN Sen3   

  1. 1.School of Civil Engineering,Hebei University of Technology,Tianjin 300132,China;2.Tianjin Municipal Engineering Research Institute,Tianjin 300074,China;3.School of Highway,Chang’an University,Xi’an 710064,Shaanxi,China
  • Received:2010-01-22 Revised:2010-03-03 Online:2010-06-15 Published:2015-01-22

摘要: 采用低温弯曲破坏试验和约束试件温度应力试验,评价了Superpave沥青混合料的低温抗裂性,并对两种试 验方法及其评价指标进行对比分析。研究结果表明:约束试件温度应力试验中的冻断温度和转折点温度可以较好 的评价Superpave沥青混合料的低温抗裂性;弯曲破坏试验中用弯曲应变能密度作为评价指标可以很好表征Superpave 沥青混合料的低温性能,并且与约束试件温度应力试验结果基本吻合。

关键词: Superpave沥青混合料, 低温抗裂性, 约束试件温度应力试验, 低温弯曲破坏试验, 弯曲应变能密度

Abstract: The low-temperature anti-cracking performance of Superpave asphalt mixture is evaluated respectively by low temperature curvature rupture test and thermal stress restrained specimen test (TSRST).The results show that freezing temperature and transition point temperature are the indexes to evaluate the low temperature performance of superpave asphalt mixture.It is also found that the curvature strain energy density used as an evaluation index indicates well the low temperature performance of Superpave asphalt mixture;meanwhile, the test result can accord with the result got by TSRST.

Key words: Superpave asphalt mixture, low-temperature anti-cracking performance, thermal stress restrained specimen test (TSRST), low temperature curvature rupture test, bending strain energy density

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