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首页> 外文期刊>The international journal of pavement engineering & asphalt technology >DURABLE PAVEMENT MAINTENANCE USING REINFORCED ASPHALT, 20 YEARS OF EXPERIENCE
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DURABLE PAVEMENT MAINTENANCE USING REINFORCED ASPHALT, 20 YEARS OF EXPERIENCE

机译：使用沥青的耐用路面养护经验20年

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摘要

A number of asphalt reinforcement projects involving grids are now reaching an in-service life of 20 to 25 years. Pavement projects reaching a life of 20 years (a standard pavement maintenance cycle) provides confidence on the in-service durability of the grids used at the time. Grids have been used in association with asphalt in applications covering primarily reflective cracking mitigation, but also to address a number of other issues, such as structural degradation of asphalt pavements on weak subgrade or differential settlement in road widening projects. Although the performance of reflective cracking mitigation projects has been regularly reported in publications, reference sites where grids were used for other purpose than reflective cracking are less often presented. This publication reviews a number of typical case studies located in different parts of the world, particularly Europe, and covering reflective cracking as well as other applications. The projects selected are representative in the sense that the objectives -as well as the design- were sound and no major problem occurred during construction. After a comparative analysis of the projects selected for this investigation, this paper focuses on the lessons that can be learnt from such sites that may be used to address current pavement challenges. This survey provides field evidence that grids can effectively control asphalt cracking related to phenomenon ranging from fatigue to differential settlements.
机译：现在，许多涉及网格的沥青增强项目的使用寿命达到20至25年。使用寿命长达20年的路面项目（标准的路面养护周期）为当时使用的格栅的使用寿命提供了信心。网格已与沥青结合使用，其应用主要涵盖缓解反射裂缝的问题，但也解决了许多其他问题，例如路基在弱路基上的沥青路面的结构退化或道路拓宽工程中的差异沉降。尽管在出版物中定期报告了缓解反射裂缝的项目的性能，但是很少提供参考网格，这些站点将网格用于反射裂缝以外的其他用途。该出版物回顾了位于世界不同地区（尤其是欧洲）的许多典型案例研究，涉及反射裂缝以及其他应用。选择的项目具有代表性，因为目标（以及设计）都是合理的，在施工过程中不会出现重大问题。在对本次调查选择的项目进行比较分析之后，本文重点介绍了可以从此类站点中学到的经验教训，这些经验教训可用于应对当前的路面挑战。这项调查提供了现场证据，表明网格可以有效地控制与从疲劳到差异沉降的现象有关的沥青裂缝。

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