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首页> 外文期刊>Construction and Building Materials >Mitigating seal coat damage due to superheavy load moves in Texas low volume roads
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Mitigating seal coat damage due to superheavy load moves in Texas low volume roads

机译：减轻了德克萨斯州低流量道路上的超重载荷移动引起的密封层损坏

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摘要

Over the past few years, the number of Super Heavy Load (SHL) moves on the Texas highways has drastically increased, resulting in severe damage, particularly on low volume roads. One of the major failure modes on these low volume roads is peeling the fresh seal coats that have been employed as a primary maintenance option by the Texas Department of Transportation (TxDOT). In this paper, a mechanistic-empirical (M-E) guideline that incorporates a Microsoft Excel spreadsheet program was developed to aid in the evaluation and characterization of the damage (peel-off) potential of seal coats when subjected to SHL vehicle loading. Field validations were conducted to validate and calibrate the guideline. It was observed that the pavement surface temperature is the most critical factor along with pavement slope in travel direction, combination of aggregate and binder types, and curing period. Additionally, the texture depth that was measured using the sand patch test method was found to play a significant role in characterizing and controlling seal coat damage. Overall, the developed M-E guideline exhibits great promising potential to serve as an aid for evaluating and mitigating seal coat damage due to SHL vehicle loading on low volume roads in Texas.
机译：在过去的几年中，德克萨斯州高速公路上的超重载（SHL）移动数量急剧增加，从而造成了严重破坏，尤其是在小流量道路上。这些低流量道路上的主要故障模式之一是剥去新鲜的密封层，这些涂层已被德克萨斯州交通运输部（TxDOT）用作主要维护选项。在本文中，结合了Microsoft Excel电子表格程序的机械-经验（M-E）指南被开发出来，以帮助评估和表征SHL车辆负载时密封涂层的损坏（剥离）潜力。进行了现场验证，以验证和校准指南。观察到路面表面温度是最关键的因素，包括行进方向上的路面坡度，骨料和粘结剂类型的组合以及固化时间。此外，发现使用沙斑试验方法测量的纹理深度在表征和控制密封涂层损坏中起着重要作用。总体而言，已开发的M-E指南具有巨大的潜力，可作为评估和减轻德克萨斯州小流量道路上SHL车辆装载造成的密封层损坏的辅助工具。

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  • 来源
    《Construction and Building Materials》 |2011年第8期|p.3236-3244|共9页
  • 作者

    Jeong Ho Oh; D.H. Chen; L.F. Walubita; A.J. Wimsatt;

  • 作者单位

    Texas Transportation Institute, 601D CE/TT1 Building, College Station, TX 77843-3136. USA;

    School of Highway Engineering, Changsha Univ. of Science and Technology, Chiling Rd. 45#, Changsha, Hunan 410076, People's Republic of China,Pavement Engineer, Texas Dept, of Transportation, 4203 Bull Creek #39, Austin, TX 78731, USA;

    Texas Transportation Institute, Texas A&M University, 601G CE/TT1 Building, College Station, TX 77843-3136, USA;

    Texas Transportation Institute, Texas A&M University, 508G CE/TTI Building, College Station, TX 77843-3136, USA;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    seal coat; pavement surface temperature; superheavy load (shl) moves; surface energy; tensile strength; pavement slope;

    机译：密封层;路面温度;超重（shl）运动;表面能;抗拉强度;路面坡度;

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