BTA混合料抗疲劳性能的试验研究

关键字：BTA,混合料,抗疲劳,性能,试验,研究

（北京建筑大学 土木与交通工程学院，北京  100044）
 

    摘要：在BTA混合料中分别掺量0.15%、0.3%、0.45%的木质素纤维，以提高混合料的抗疲劳性能。通过四点弯曲疲劳试验方法，分析了木质素纤维对BTA混合料疲劳性能的改善效果，提出以木质素纤维改善BTA混合料的疲劳方程并确定了木质素纤维的最佳用量。
    关键词：木质素纤维；BTA混合料；抗疲劳性能；四点弯曲疲劳实验
    中图分类号：TU535        文献标识码：A        文章编号：1001-702X（2018）01-0063-04
 

Experimental study on anti-fatigue performance of BTA mixture
WU Pengzhi，ZHANG Xintian，ZHAO Yan，LI Bo
（School of Civil and Transportation Engineering，Beijing University of Civil Engineering and Architecture，
Beijing 100044，China）

    Abstract：To improve the anti-fatigue properties of the BTA mixture，it was added 0.15%，0.3%，0.45% proportion of lignin fiber. The improvement effect of lignin fiber on the fatigue properties of BTA mixture was analyzed by four-point bending fatigue test. The fatigue equation of BTA mixture is proposed，and determined the optimal amount of lignin fiber.
    Key words：lignin fiber，BTA mixture，anti-fatigue properties，four-point bending fatigue test