Development of Performance Measures for Pothole-Patching Cold Asphalt Mix Materials for Safe and Sustainable Transportation

Potholes pose traffic safety hazards, which can cause significant damage to vehicles if they are left unpatched. Pothole patching materials considered in the proposal is a cold asphalt mix, which lacks flexibility and does not stick to a pothole as well as hot asphalt mixes. Therefore, cold asphalt mix materials to the potholes can be dislodged by moving traffic and can pose safety hazards to both vehicles and pedestrians. There are many pothole-patching cold asphalt mix materials available in the market, however, there are no widely accepted performance measures to evaluate these products. The effectiveness of pothole patching materials greatly influences the durability and longevity of roads, and therefore it is crucial to evaluate their performances for severe freezing and thawing conditions of the Midwest. This proposal aims to evaluate existing cold asphalt mix materials for pothole patching with the purpose of developing laboratory testing procedures and performance measures and developing a new innovative patching material to promote traffic safety and sustainability.

Language

• English

Project

• Status: Active
• Funding: $164,680.52
• Contract Numbers:

  69A3552348307

• Sponsor Organizations:

  Office of the Assistant Secretary for Research and Technology

  University Transportation Centers Program
  Department of Transportation
  Washington, DC  United States  20590
• Managing Organizations:

  Mid-America Transportation Center

  University of Nebraska-Lincoln
  2200 Vine Street, PO Box 830851
  Lincoln, NE  United States  68583-0851
• Project Managers:

  Stearns, Amy

• Performing Organizations:

  University of Iowa, Iowa City

  National Advanced Driving Simulator, 2401 Oakdale Blvd
  Iowa City, IA  United States  52242-5003
• Principal Investigators:

  Lee, Hosin

• Start Date: 20240601
• Expected Completion Date: 20260630
• Actual Completion Date: 0
• USDOT Program: University Transportation Centers Program

Subject/Index Terms

• TRT Terms: Asphalt; Asphalt mixtures; Mix design; Mixtures; Pavements; Quality control; Recycled materials; Rejuvenators; Standards; Warm mix paving mixtures
• Subject Areas: Design; Highways; Materials; Pavements;

Filing Info

• Accession Number: 01971743
• Record Type: Research project
• Source Agency: Mid-America Transportation Center
• Contract Numbers: 69A3552348307
• Files: UTC, RIP
• Created Date: Nov 19 2025 2:17PM