Studded Tire Wear Performance Evaluation of the Asphalt Mix Designs for a Cold Region Environment

Studded tire wear is one of the most important contributing factors that govern pavement life on high traffic volume roads in Southcentral 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 performance-based analysis of the use of hard aggregate and polymer modified binders related to the reduction 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 have been presented to show cumulative average annual daily traffic versus total rut depth comparing mix designs with hard aggregate and polymer modification to mix designs without. 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 have proven 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. It has been recommended to continue to research the use of more highly modified asphalt binders to further improve the performance of asphalt mixes.

Language

  • English

Media Info

  • Media Type: Digital/other
  • Features: Figures; References; Tables;
  • Pagination: 19p

Subject/Index Terms

Filing Info

  • Accession Number: 01763636
  • Record Type: Publication
  • Report/Paper Numbers: TRBAM-21-00505
  • Files: TRIS, TRB, ATRI
  • Created Date: Dec 23 2020 11:07AM