Experimental and Numerical Study for the Debonding Interface Between an Existing Pavement and a New Concrete Overlay

Most pavement projects today are a rehabilitation or rejuvenation of existing and distressed pavements. We often add more overlay layers or mill out patches for repair material rather than reconstruct the entire roadway. One of the key requirements for those repair systems is to have adequate bond strength between the existing concrete substrate and overlay throughout the service life. When a repair is performed, the differences in the properties of two materials will affect bond strength and stress distribution. Of particular relevance are differences in shrinkage, elastic modulus and thermal movement. Repaired sections of concrete pavement often fail due to debonding or delamination of the top repaired layer. Thus there is a need to improve or to maintain the bond by improved material properties or improved interface conditions.

Language

  • English

Project

  • Status: Completed
  • Funding: $68418
  • Contract Numbers:

    DTRT12-G-UTC08

  • Sponsor Organizations:

    Research and Innovative Technology Administration

    University Transportation Centers Program
    1200 New Jersey Avenue
    Washington, DC  United States  20590
  • Project Managers:

    Kline, Robin

  • Performing Organizations:

    University of Utah, Salt Lake City

    College of Engineering, Department of Civil Engineering
    Salt Lake City, UT  United States  84112-0561
  • Principal Investigators:

    Bordelon, Amanda

  • Start Date: 20130101
  • Expected Completion Date: 0
  • Actual Completion Date: 20170501
  • Source Data: MPC-419

Subject/Index Terms

Filing Info

  • Accession Number: 01489498
  • Record Type: Research project
  • Source Agency: Mountain-Plains Consortium
  • Contract Numbers: DTRT12-G-UTC08
  • Files: UTC, RiP
  • Created Date: Aug 9 2013 1:02AM