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State of the Practice for High Polymer-Modified Asphalt Binders and Mixtures
Transportation Research Record: Journal of the Transportation Research Board ( IF 1.7 ) Pub Date : 2021-02-19 , DOI: 10.1177/0361198121995190
Jhony Habbouche 1 , Ilker Boz 1 , Brian K. Diefenderfer 1 , Bryan C. Smith 2 , Sayed Hamidullah Adel 3
Affiliation  

The objective of this paper was to provide information on the state of the practice for using high polymer-modified (HP) asphalt concrete (AC) mixtures in the United States (U.S.) and Canada. This information was collected through a survey of U.S. and Canadian provincial agencies combined with a search of HP-related specifications, special provisions, and field trials or pilot projects previously constructed. Moreover, the Virginia Department of Transportation’s (VDOT) current state of the practice with regard to using HP paving material was determined. This was achieved through a navigation of VDOT databases to report tonnage and types of produced HP AC mixtures, and experience, lessons learned, and best practices on behalf of multiple asphalt contractors in the area. The majority of the agencies that currently use or have constructed field trials and pilot projects using HP AC mixtures are located in the eastern part of the U.S. In general, HP AC mixtures have been used in a wide range of applications ranging from full-depth AC to thin AC overlays under heavy traffic on interstates and slow-braking loads at intersections. No major field-related construction issues in relation to mixing temperatures and in-place compaction of HP AC mixtures were reported, and standard construction practices and equipment were used. Finally, good communication between the polymer/binder supplier and the contractor, and solid planning before conducting the work were important lessons learned with regard to paving with HP AC mixtures.



中文翻译:

高聚物改性沥青粘合剂和混合物的实践状态

本文的目的是提供有关在美国(美国)和加拿大使用高聚合物改性(HP)沥青混凝土(AC)混合物的实践状态的信息。该信息是通过对美国和加拿大省级机构进行的调查,以及与HP相关的规范,特殊规定以及先前构建的现场试验或试点项目的搜索而收集的。此外,确定了弗吉尼亚运输部(VDOT)在使用HP铺路材料方面的当前实践状态。这是通过导航VDOT数据库来报告的,该报告代表该地区的多个沥青承包商报告了所生产的HP AC混合物的吨位和类型,以及经验,教训和最佳做法。当前使用或已经使用HP AC混合物构建现场试验和试点项目的大多数机构位于美国东部。一般而言,HP AC混合物已在从全深度AC到广泛的应用中使用。在州际交通繁忙和交叉路口缓慢制动的情况下覆盖薄薄的AC覆盖层。没有关于混合温度和HP AC混合物现场压实的与现场相关的重大施工问题的报道,并且使用了标准的施工方法和设备。最后,聚合物/粘合剂供应商与承包商之间的良好沟通,以及开展工作之前的坚实计划,是与HP AC混合物摊铺有关的重要经验教训。HP AC混合物已被广泛使用,从全深度AC到州际交通繁忙和交叉路口缓慢制动负载下的薄AC覆盖层。没有关于混合温度和HP AC混合物现场压实的与现场相关的重大施工问题的报道,并且使用了标准的施工方法和设备。最后,聚合物/粘合剂供应商与承包商之间的良好沟通,以及在开展工作之前进行可靠的计划,是与HP AC混合物摊铺有关的重要经验教训。HP AC混合物已被广泛使用,从全深度AC到州际交通繁忙和交叉路口缓慢制动负载下的薄AC覆盖层。没有关于混合温度和HP AC混合物现场压实的与现场相关的重大施工问题的报道,并且使用了标准的施工方法和设备。最后,聚合物/粘合剂供应商与承包商之间的良好沟通,以及在开展工作之前进行可靠的计划,是与HP AC混合物摊铺有关的重要经验教训。没有关于混合温度和HP AC混合物现场压实的与现场相关的重大施工问题的报道,并且使用了标准的施工方法和设备。最后,聚合物/粘合剂供应商与承包商之间的良好沟通,以及在开展工作之前进行可靠的计划,是与HP AC混合物摊铺有关的重要经验教训。没有关于混合温度和HP AC混合物现场压实的与现场相关的重大施工问题的报道,并且使用了标准的施工方法和设备。最后,聚合物/粘合剂供应商与承包商之间的良好沟通,以及在开展工作之前进行可靠的计划,是与HP AC混合物摊铺有关的重要经验教训。

更新日期:2021-02-19
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