Change: A Resilient Approach for Enhancing Asphalt Pavement Performance under Natural Events

Pavements are strong structures but are subjected to large traffic loading and different atmospheric conditions. Asphalt pavements face problems related to their physical and mechanical characteristics. One of the biggest challenges that asphalt pavement must overcome is its high thermal susceptibility, the relatively low durability and not enough climate resiliency. These problems can result in problems such as permanent deformation at high temperatures, and the expansion-contraction phenomenon trigger the appearance of thermal cracking shortening the durability and resilience of the asphalt pavements. A new recycled-aerogel composite for construction materials, named “RaC”, was developed in the Advanced Pavement Laboratory at Arizona State University (ASU). This novel product includes recycled materials such as crumb rubber particles, oil, fibers, and/or material in the form of aerogel particles or fibers. The recycled-aerogel composite is combined with asphalt binder or asphalt mixtures to yield modified material with improved characteristics. RaC solves shortcomings of asphalt pavements such as high-temperature deformation and thermal cracking making longer-lasting transportation infrastructures. This technology decreases the consumption of raw materials and energy fitting the concept of circular economy. The objective of this project is to thrive in extending the life of asphalt by using recycled materials to make asphalt pavement more durable and provide guidelines for the proper utilization of this new technology.

Language

• English

Project

• Status: Completed
• Funding: $378,969.00
• Contract Numbers:

  69A3552344813

  69A3552348318

• 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:

  National Center for Infrastructure Transformation

  Prairie View A&M University
  Prairie View, TX  United States  77446
• Performing Organizations:

  Arizona State University, Tempe

  Tempe, AZ  United States 
• Principal Investigators:

  Kaloush, Kamil

• Start Date: 20230601
• Expected Completion Date: 20250531
• Actual Completion Date: 20250531
• USDOT Program: University Transportation Centers
• Source Data: 01-02-ASU

Subject/Index Terms

• TRT Terms: Asphalt mixtures; Deformation; Pavement cracking; Silica; Thermal resistance
• Subject Areas: Highways; Materials; Pavements;

Filing Info

• Accession Number: 01914003
• Record Type: Research project
• Source Agency: National Center for Infrastructure Transformation
• Contract Numbers: 69A3552344813, 69A3552348318
• Files: UTC, RIP
• Created Date: Apr 5 2024 12:15PM