水泥路面环氧树脂磨耗层的抗滑衰变模型

发布时间：2018-03-02 21:16

本文选题：道路工程　切入点：水泥路面　出处：《深圳大学学报(理工版)》2017年06期 　论文类型：期刊论文

【摘要】：为了研究水泥路面环氧树脂磨耗层的抗滑衰变规律,制作环氧磨耗层试验板,进行加速磨耗试验,分析骨料用量、改性环氧树脂用量、骨料粒径和施工工艺等因素对抗滑衰变规律的影响,建立不同油石比和荷载作用次数下构造深度(tectonic depth,TD)和摆式摩擦仪表面摩擦系数(british pendulum number,BPN)的抗滑衰变模型,并利用工程实例通车半年后的检测数据对预估模型进行修正.结果表明,随着加载次数增加,不同用量骨料的TD和BPN值均减小,衰变速率随着骨料用量增多而加快,但TD和BPN终值仍然很高;改性环氧树脂用量越大,TD和BPN初值越小,抗滑衰变速率越快,抗滑性能越差,推荐最佳油石比为0.25;骨料粒径越大,TD和BPN初值越大,衰变速率越快,终值反而越小;双层磨耗层施工工艺的抗滑耐久性最佳,单层次之,三层最差;利用修正模型,计算比较1年后磨耗层的抗滑数据与实测值,表明抗滑衰变修正模型适用性良好.
[Abstract]:In order to study the anti-slip decay rule of epoxy resin wear layer on cement pavement, the epoxy wear layer test board was made, and the accelerated wear test was carried out, and the amount of aggregate and modified epoxy resin were analyzed. The factors such as aggregate particle size and construction technology are used to resist the influence of sliding decay law. The anti-slide decay models of tectonic depth TDs and friction coefficient of tilting friction instrument surface are established under different oil / stone ratio and loading times, and the friction coefficient of tilting friction instrument surface is british pendulum number-BPNs. The results show that the TD and BPN values of aggregates of different amounts decrease with the increase of loading times, and the decay rate increases with the increase of aggregate content. However, the final values of TD and BPN are still very high, the higher the initial value of TD and BPN is, the faster the anti-slip decay rate is and the worse the skidding resistance is, and the better the ratio of aggregate to stone is 0.25.The larger the initial value of TD and BPN is, the faster the decay rate is. On the contrary, the final value is smaller; the anti-slip durability of the double-layer wear layer is the best, the single layer is the worst, and the three layers are the worst. The anti-slip data and the measured value of the wear layer after one year are calculated and compared by using the modified model. It is shown that the model of anti-slip decay correction is applicable.
【作者单位】：长安大学公路学院;陕西交通职业技术学院公路与铁道工程学院;
【基金】：国家自然科学基金资助项目(51508030) 陕西省交通运输厅科研资助项目(14-09K) 陕西交通职业技术学院科研资助项目(YJ17006)~~
【分类号】：U416.216

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