Studded tire wear is one of the most important contributing factors that govern pavement life on high traffic volume roads in south-central Alaska. It has been estimated that the annual cost to repair damage caused by studded tires in Alaska is approximately $13.7 million. Polymer modified asphalt binders and hard aggregate are commonly used in mix designs in the State of Alaska Department of Transportation and Public Facilities projects in an attempt to resist studded tire wear. This research provides a field performance-based analysis of the use of hard aggregate and polymer modified binders related to the reduction of the impact of studded tire wear. To analyze the performance of modification in asphalt mix designs, roadway data was gathered from the Alaska Department of Transportation Pavement Management System Database and roads were grouped into deterioration families based on mix design properties. Relationships of each deterioration are presented to show cumulative average annual daily traffic versus total rut depth, comparing mix designs with and without hard aggregate and polymer modification. Findings indicated that both polymer modification and hard aggregate can be used to reduce the impact of studded tire wear. The benefits of polymer modification and hard aggregate proved more significant as cumulative traffic volumes increase. Recommendations from the performance analysis included continuing the use of hard aggregate and polymer modified binders on Alaskan roadways with continuous research on the use of more highly modified asphalt binders to further reduce the impact of studded tire wear.

镶钉轮胎磨损是控制阿拉斯加中南部高流量道路上路面寿命的最重要因素之一。据估计，每年在阿拉斯加修理镶钉轮胎造成的损坏的费用约为1,370万美元。聚合物改性的沥青粘合剂和硬质骨料通常在阿拉斯加州交通和公共设施部项目的混合料设计中使用，目的是抵抗带钉轮胎的磨损。这项研究提供了一种基于现场性能的分析，以分析硬质骨料和聚合物改性的粘合剂的使用，从而减少了带钉轮胎磨损的影响。为了分析改性沥青混合料的性能，道路数据是从阿拉斯加交通部路面管理系统数据库中收集的，并且根据混合设计属性将道路分为恶化类。给出了每种变质的关系，以显示累积的年平均每日通行量与总车辙深度之间的关系，比较了具有和不具有硬骨料和聚合物改性的混合料设计。研究结果表明，聚合物改性和硬质骨料均可用于减少带钉轮胎磨损的影响。随着累积交通量的增加，聚合物改性和硬质骨料的好处更加明显。