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首页> 外文会议>E-proceedings of first international conference on transport infrastructure >RECENT INNOVATIONS AND PRACTICES OF PAVING FABRIC SYSTEMS TO REDUCE REFLECTIVE CRACKING
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RECENT INNOVATIONS AND PRACTICES OF PAVING FABRIC SYSTEMS TO REDUCE REFLECTIVE CRACKING

机译：铺设纤维系统以减少反射裂缝的最新创新和实践

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摘要

Pavement rehabilitation is rapidly becoming one of the most important issues facing many highway departments. Asphalt concrete overlay is one of the commonly used methods for rehabilitating deteriorated pavements. One major type of distress influencing the life of an overlay is reflective cracking. Reflective cracking in the overlay allows water to percolate into pavement structure and weaken subbase, and contributes to many forms of pavement deterioration, including increased roughness and spalling. Although these nonwoven fabrics have generally been successful in asphalt overlay applications, there is no synthesis to their performance. In the past, the role of paving fabrics to reduce reflective cracking has not been clearly evaluated. As a result, there is a lack of consistent considerations of paving fabric option in pavement management systems. In this project, applications and effectiveness of stress-relieving interlayers, known as paving fabrics, to reduce reflective cracking is synthesized. Basic functions of paving fabrics, long-term performance, and recent innovations are discussed. In addition, a survey of the current paving fabric applications in the State of Mississippi was conducted to determine the various practices and performances of the paving fabric systems to reduce reflective cracking. The field performance of overlays using fabric interlayers has generally been successful, although there have been cases where the paving fabric systems provided little or no improvements. A summary of state-of-the-art practices as well as possible directions for future research is reported.
机译：路面修复正迅速成为许多公路部门面临的最重要问题之一。沥青混凝土覆盖层是修复老化路面的常用方法之一。影响覆盖层寿命的一种主要类型的遇险是反射裂缝。覆盖层中的反射性裂缝使水渗透到路面结构中并削弱了路基，并导致许多形式的路面劣化，包括增加的粗糙度和剥落。尽管这些非织造织物通常在沥青铺面应用中是成功的，但其性能尚无综合性。过去，铺路织物在减少反射裂缝方面的作用尚未得到明确评估。结果，在路面管理系统中缺乏对路面结构选择的一致考虑。在这个项目中，合成了应力消除中间层（称为铺路织物）在减少反射裂缝方面的应用和有效性。讨论了铺路织物的基本功能，长期性能和最新创新。此外，对密西西比州当前的铺路织物应用进行了一项调查，以确定铺路织物系统的各种做法和性能，以减少反射裂缝。尽管在某些情况下铺路织物系统几乎没有改善，但使用织物夹层的覆盖层的现场性能通常是成功的。报告了最新实践的摘要以及未来研究的可能方向。

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