轮胎抛光对沥青路面表面纹理耐久性和抗滑性劣化的影响研究

IF 5.3 1区 工程技术 Q1 ENGINEERING, MECHANICAL
Wear Pub Date : 2024-07-29 DOI:10.1016/j.wear.2024.205518
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引用次数: 0

摘要

作为沥青路面的固有属性,纹理耐久性是导致路面抗滑性变化的根本原因。然而,不同尺度的纹理在轮胎磨损下的劣化行为目前仍不清楚。为了探索多尺度纹理的耐久性对抗滑性的影响,使用哈尔滨抛光与动摩擦综合实验机(HPFM)对 9 个路面试样进行了测试。路面抗滑纹理测试仪(PATT-II)用于高精度纹理扫描和重建。结果表明,三种类型路面在 300 min 碾压后的纹理丰富度和抗滑性依次为开放级配摩擦粗粒式(OGFC)>石子胶结沥青(SMA)>沥青混凝土(AC),而 SMA 的耐久性最好,这是由沥青混合料的材料骨架结构决定的。沥青混合料的宏观纹理劣化起初较轻微,在抛光 300 分钟后趋于稳定。微观纹理劣化行为与宏观纹理劣化相同,开始时迅速增加,然后缓慢减少,最后保持不变。这种劣化是由沥青损坏和集料表面不断磨损造成的。在 300min 抛光中,纹理尺度越小,二维-PSD 劣化行为越显著,在 0.15 mm-0.3 mm 的微观尺度范围内贡献波长最大,这是由矿物混合料与沥青材料之间的粘附特性和分子机理决定的。在不同水膜厚度下,路面纹理对动摩擦系数的影响明显不同,微观纹理和宏观纹理分别在边界润滑和混合润滑中起主要作用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Study on the influence of tire polishing on surface texture durability and skid resistance deterioration of asphalt pavement

As an inherent attribute of asphalt pavement, texture durability is the essential reason for the change in skid resistance. However, different scale texture deterioration behavior remains unclear by tire wearing at present. To explore the influence of the durability of multi-scaled textures on skid resistance, nine pavement specimens were tested using the Harbin polishing and dynamic friction integrated experimental machine (HPFM). The pavement anti-skid texture tester (PATT-II) was used for high-precision texture scanning and reconstruction. The results show that the texture richness and skid resistance of the three types of pavements in 300 min polishing are ranked as Open-graded Friction Coarse (OGFC) > Stone Mastic Asphalt (SMA) > Asphalt Concrete (AC), while SMA presents the best durability, determined by the material skeleton structure of asphalt mixture. The macro-texture deterioration occurs slightly at first and then tends to stabilize in 300 min polishing. The micro-texture deterioration behavior is the same as the μHPFM, increasing rapidly at the beginning, then slowly decreasing, and finally remaining constant. This deterioration is caused by the asphalt damage and continuously wearing aggregate surface. The 2D-PSD deterioration behavior is more significant with a smaller texture scale in 300min polishing, and the most considerable contribution wavelength in the microscopic scale range is 0.15 mm–0.3 mm, which is determined by the adhesion characteristics and molecular mechanism between a mineral mixture and asphalt material. The influence of pavement texture on the dynamic friction coefficient is significantly different under different water film thicknesses, the micro-texture and macro-texture play the main roles in boundary and mixed lubrication, respectively.

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来源期刊
Wear
Wear 工程技术-材料科学:综合
CiteScore
8.80
自引率
8.00%
发文量
280
审稿时长
47 days
期刊介绍: Wear journal is dedicated to the advancement of basic and applied knowledge concerning the nature of wear of materials. Broadly, topics of interest range from development of fundamental understanding of the mechanisms of wear to innovative solutions to practical engineering problems. Authors of experimental studies are expected to comment on the repeatability of the data, and whenever possible, conduct multiple measurements under similar testing conditions. Further, Wear embraces the highest standards of professional ethics, and the detection of matching content, either in written or graphical form, from other publications by the current authors or by others, may result in rejection.
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