Hybrid Concrete for Advancing Pavement Performance

The objective of this study is to explore the advantages, challenges, and feasibility of using a hybrid, semi-flexible, semi-ridge concrete for highway pavements, bridge decks, and overlays. This hybrid concrete will be made with asphalt pervious concrete filled with self-consolidating Portland cement mortar, and called a casting cement asphalt mixture (CCAM). The mixture is expected to possess the advantages of both asphalt (flexible) and Portland cement (rigid) concrete, such as no requirement for jointing, high resistance to rutting, high stability at elevated temperatures, and excellent mechanical and durability properties, thus advancing performance and longevity of transportation infrastructures. In this study, experiments will be designed and conducted to achieve optimal CCAM mixes. The basic engineering properties, such as strength, shrinkage, and freeze-thaw durability, of the CCAMs, will be evaluated. The interactions of asphalt and Portland cement concrete will be examined, and their synergetic effects on pavement performance will be assessed. It is expected that the results from the study will not only help determine if CCAMs are viable for transportation infrastructure but also provide fundamental insights and recommendations to lead to further evaluations of other key engineering properties and development of guidelines for applying CCAMs in practice.

Language

  • English

Project

  • Status: Active
  • Funding: $45000
  • Contract Numbers:

    DTRT13-G-UTC37

  • Sponsor Organizations:

    Midwest Transportation Center

    Iowa State University
    2711 S Loop Drive, Suite 4700
    Ames, IA  United States  50010-8664

    Office of the Assistant Secretary for Research and Technology

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

    Midwest Transportation Center

    Iowa State University
    2711 S Loop Drive, Suite 4700
    Ames, IA  United States  50010-8664

    Iowa Highway Research Board

    Iowa Department of Transportation
    800 Lincoln Way
    Ames, IA  United States  50010

    Iowa Department of Transportation

    800 Lincoln Way
    Ames, IA  United States  50010

    Office of the Assistant Secretary for Research and Technology

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

    Iowa State University, Ames

    Institute for Transportation
    2711 South Loop Drive, Suite 4700
    Ames, Iowa  United States  50010-8664
  • Principal Investigators:

    Wang, Kejin

  • Start Date: 20170301
  • Expected Completion Date: 20180228
  • Actual Completion Date: 0

Subject/Index Terms

Filing Info

  • Accession Number: 01632691
  • Record Type: Research project
  • Source Agency: Midwest Transportation Center
  • Contract Numbers: DTRT13-G-UTC37
  • Files: UTC, RiP
  • Created Date: Apr 26 2017 10:00AM