Concrete Overlay Performance on Iowa's Roadways, TR-698

The objective of this study is to develop a report on the performance of concrete overlays in Iowa. Concrete overlays have been constructed on Iowa roadways since 1960. The performance of concrete overlays on the state system is well documented based on Iowa Department of Transportation (DOT) data collected using automated approaches from the 1990's. In addition, the Iowa DOT began collecting automated distress and condition data for all public roads including local streets in 2013. The Iowa Concrete Paving Association (ICPA) maintains a comprehensive list of all of the concrete overlays constructed in Iowa. By combining the information from the Iowa DOT and ICPA, it is now possible to assess the performance of concrete overlays on the whole system. It is planned that a database of the existing overlays and their performance will be developed and made available to agencies in the state. The research report developed will include causes of failure and reasons for success along with lessons learned. This will allow cities, counties, and Iowa DOT easy access to information on the type of overlay they are considering and to review the particulars on each type of overlay prior to deciding which fits their need.


    • English


    • Status: Completed
    • Funding: $104773
    • Contract Numbers:


      Add 559

    • Sponsor Organizations:

      Iowa Department of Transportation

      800 Lincoln Way
      Ames, IA  United States  50010

      Iowa Highway Research Board

      Iowa Department of Transportation
      800 Lincoln Way
      Ames, IA  United States  50010
    • Project Managers:

      Goetz, Vanessa

    • Performing Organizations:

      Iowa State University, Ames

      Institute for Transportation Studies
      2711 S. Loop Drive, Suite 4700, Program for Sustainable Pavement Engineering and Research (PROSPER)
      Ames, IA  United States  50010-8864

      Iowa State University

      National Concrete Pavement Technology Center
      2711 South Loop Drive Suite 4700
      Ames, Iowa  United States  50010
    • Principal Investigators:

      Taylor, Peter

    • Start Date: 20151101
    • Expected Completion Date: 20190430
    • Actual Completion Date: 0

    Subject/Index Terms

    Filing Info

    • Accession Number: 01580316
    • Record Type: Research project
    • Source Agency: Iowa Department of Transportation
    • Contract Numbers: TR-698, Add 559
    • Files: RIP, STATEDOT
    • Created Date: Nov 2 2015 11:42AM