Exploring the Feasibility of Innovative Integration of Place Change Materials for Thermo-Adaptive Asphalt Pavements

Asphalt has significant effects on the performance and life span of asphalt concrete (AC) pavements, since asphalt is temperature-sensitive. Different from current extensive efforts (design, construction, preservation and repair) to address thermal related distresses of AC pavements, the research team is proposing an innovative strategy to intrinsically regulate the temperature in AC due to changes in the service environment (i.e. to make AC thermo-adaptive), by integrating phase change materials (PCMs). The new strategy stabilizes PCMs using porous particles of different length scales, which are used to replace aggregate and filler in AC without negatively affecting the AC performance. By adjusting the type and amount of PCMs, comprehensive binder and mixture tests will be conducted to evaluate the effects of the additives on the properties/performances of asphalt binders/mixtures. The results of the proposed study are expected to provide preliminary recommendations to (1) incorporate sufficiently large amount of PCMs without sacrificing mechanical properties; and (2) select PCMs (Ttr, type, and amount) based on specific performance requirements.

Project

  • Status: Active
  • Contract Numbers:

    ORSO 135461

  • Sponsor Organizations:

    Transportation Infrastructure Durability & Life Extension

    Washington State University
    Civil & Environmental Engineering
    Pullman, Washington  United States  99164

    Office of the Assistant Secretary for Research and Technology

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

    Transportation Infrastructure Durability & Life Extension

    Washington State University
    Civil & Environmental Engineering
    Pullman, Washington  United States  99164
  • Project Managers:

    Kline, Robin

  • Performing Organizations:

    Missouri University of Science & Technology, Rolla

    Department of Engineering
    202 University Center
    Rolla, MO    65409
  • Principal Investigators:

    Liu, Jenny

  • Start Date: 20200501
  • Expected Completion Date: 20210630
  • Actual Completion Date: 0
  • USDOT Program: University Transportation Centers

Subject/Index Terms

Filing Info

  • Accession Number: 01754235
  • Record Type: Research project
  • Source Agency: National Center for Transportation Infrastructure Durability and Life-Extension
  • Contract Numbers: ORSO 135461
  • Files: UTC, RiP
  • Created Date: Oct 5 2020 1:22PM