Determining Bond Strength of Micro-surfacing Mixes

Micro-surfacing has been widely used by several transportation agencies including the Ohio Department of Transportation (ODOT) as a preventive maintenance treatment in order to extend the service life of the pavement. ODOT does not currently have a standard test method to measure the interface bond strength for asphaltic materials. The goal of this research is to evaluate the current practice as well as new equipment and application rates for tack coat to improve the service life and performance of pavement treated with micro-surfacing, resulting in significant cost savings due to the reduced need to repair these pavements. This research will be conducted in two phases. Phase 1 will determine bond strengths for micro-surfacing mixes on asphalt with and without tack, different tack coat residue rates per square yard, different micro-surfacing mixes (leveling and surface), and different existing asphalt surfaces (on existing pavement or on micro-surfacing leveling course). It will also determine the best bond strength test to use for field micro-surfacing mixes as well as any lab prepared specimens. Phase 2 involves field implementation and evaluation of the recommended solutions. Phase 2 is contingent upon the successful completion of Phase 1 and the written authorization of the ODOT Research Section.

Language

  • English

Project

  • Status: Active
  • Funding: $29176
  • Contract Numbers:

    30581

    SJN 135491

  • Sponsor Organizations:

    Ohio Department of Transportation

    Research Program
    1980 West Broad Street
    Columbus, OH  United States  43223

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Managing Organizations:

    Ohio Department of Transportation

    Research Program
    1980 West Broad Street
    Columbus, OH  United States  43223
  • Project Managers:

    Nye, Kelly

  • Performing Organizations:

    Ohio University, Athens

    Athens, OH  United States  45701
  • Principal Investigators:

    Nazzal, Munir

  • Start Date: 20170828
  • Expected Completion Date: 0
  • Actual Completion Date: 20180228

Subject/Index Terms

Filing Info

  • Accession Number: 01641812
  • Record Type: Research project
  • Source Agency: Ohio Department of Transportation
  • Contract Numbers: 30581, SJN 135491
  • Files: RiP, STATEDOT
  • Created Date: Jul 26 2017 8:07AM