酸雨对透水沥青路面抗滑耐久性的影响
作者:
作者单位:

(长沙理工大学 道路结构与材料交通行业重点实验室,湖南 长沙 410114)

作者简介:

周志刚(1966—),男,长沙理工大学教授,博士生导师。E-mail:zhou_zgcs@sina.com

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中图分类号:

U416

基金项目:

国家自然科学基金(51878079);湖南省交通科技计划项目“车-路-环境耦合作用下透水沥青路面抗滑安全与耐久性提升技术”(201807)


Effect of acid rain on anti-sliding durability of porous asphalt pavement
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(Key Laboratory of Road Structure and Materials Transportation Industry, Changsha University of Science & Technology, Changsha 410114, China)

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    摘要:

    为探讨酸雨对透水沥青路面抗滑性能的影响,通过循环浸泡的方式模拟酸雨对OGFC-13和AC-13沥青混合料的腐蚀,借助小型加速加载试验来模拟轮胎的循环荷载作用,采用激光断面仪和摆式摩擦系数仪对试件抗滑性能进行检测,并对比分析酸液浓度和浸泡周期对混合料抗滑性能的影响,以及两种混合料在抗滑耐久性上的差异。研究结果表明:酸腐蚀会导致沥青膜的剥落,在循环荷载作用下混合料的抗滑性能经历了快速衰减期、缓慢衰减期和稳定期这3个阶段。随着酸浓度和浸泡周期的增加,会加速沥青混合料抗滑性能的衰减,降低混合料的抗滑耐久性能。与AC-13沥青混合料相比,OGFC-13沥青混合料在沥青膜剥落后,纹理构造良好,能提供更强的切削摩擦力,在酸性环境下表现出更好的抗滑耐久性。

    Abstract:

    In order to investigate the effect of acid rain on the anti-skid performance of permeable asphalt pavement, the corrosion of the OGFC-13 and the AC-13 asphalt mixtures was simulated by cyclic immersion. The cyclic action of tire load was simulated with the help of the small accelerated loading test, and the anti-skid performance of the specimens was detected and evaluated using the laser profiler and the pendulum friction coefficient meter. And the effects of acid concentration and soaking period on the skid resistance of the mixture were compared and analyzed, as well as the skid resistance durability of the two mixtures. The results show that acid corrosion will lead to peeling of asphalt film. And the slip resistance of the mixes under cyclic loading undergoes three phases: rapid decay, slow decay and stabilization. With the increase of acid concentration and soaking period, it accelerates the decay of asphalt mixtures' anti-skid performance, reducing the mixtures' anti-skid durability performance. Compared with the AC-13 asphalt mixture, the OGFC-13 asphalt mixture has good texture structure after the asphalt film is peeled off, which can provide stronger strength in acidic environment.

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引用本文

周志刚,王岩,李刚,等.酸雨对透水沥青路面抗滑耐久性的影响[J].交通科学与工程,2023,39(5):53-63.
ZHOU Zhigang, WANG Yan, LI Gang, et al. Effect of acid rain on anti-sliding durability of porous asphalt pavement[J]. Journal of Transport Science and Engineering,2023,39(5):53-63.

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  • 收稿日期:2021-12-23
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  • 在线发布日期: 2023-12-08
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