| Superpave沥青混合料低温抗裂性评价方法 |
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| 引用本文： | 张彩利,孟庆营,韩森. Superpave沥青混合料低温抗裂性评价方法[J]. 重庆交通学院学报, 2010, 0(3) |
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| 作者姓名： | 张彩利 孟庆营 韩森 |
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| 作者单位： | 河北工业大学土木工程学院;天津市政工程研究院;长安大学公路学院; |
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| 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。
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| 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 |
Evaluation Method of Low-Temperature Anti-cracking Performance of Superpave Asphalt Mixture |
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| ZHANG Cai-li,MENG Qing-ying,,HAN Sen. Evaluation Method of Low-Temperature Anti-cracking Performance of Superpave Asphalt Mixture[J]. Journal of Chongqing Jiaotong University, 2010, 0(3) |
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| Authors: | ZHANG Cai-li MENG Qing-ying HAN Sen |
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| Affiliation: | ZHANG Cai-li1,MENG Qing-ying2,3,HAN Sen3(1.School of Civil Engineering,Hebei University of Technology,Tianjin 300132,China,2.Tianjin Municipal Engineering Research Institute,Tianjin 300074,3.School of Highway,Chang'an University,Xi'an 710064,Shaanxi,China) |
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| 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... |
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| Keywords: | 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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