Improving Concrete Patching Practices on Iowa Roadways TR-731

Portland cement concrete (PCC) pavements are subject to distress from a variety of mechanisms including traffic loads, thermal movement, freezing and thawing, materials related distress, and construction issues. Standard practice for maintaining PCC pavements includes concrete patching using partial depth and full depth repairs. States spend large amounts of money and time every year performing partial and full depth repairs of PCC pavements. The performance of partial and full depth repairs is important for cost savings and safety of the roadways. The important aspects of concrete patching are rapid strength gain, material workability, durability (repair service life), cost, and constructability of the repair. These aspects may not always be in line with each other and need to be considered as a whole. For example, rapid strength gain of the patching materials may reduce road closure time and minimize disruption to the traffic; however, rapid strength gain may also cause problems with workability, constructability, and durability of the patch.


    • English


    • Status: Active
    • Funding: $175000
    • Contract Numbers:


    • Sponsor Organizations:

      Iowa Department of Transportation

      800 Lincoln Way
      Ames, IA  United States  50010
    • Managing Organizations:

      Wiss, Janney, Elstner Associates, Incorporated

      330 Pfingsten Road
      Northbrook, IL  United States  60062
    • Project Managers:

      Goetz, Vanessa

    • Principal Investigators:

      Nelson, Todd

    • Start Date: 20170801
    • Expected Completion Date: 20211231
    • Actual Completion Date: 0

    Subject/Index Terms

    Filing Info

    • Accession Number: 01691623
    • Record Type: Research project
    • Source Agency: Iowa Department of Transportation
    • Contract Numbers: TR-731
    • Files: RIP, STATEDOT
    • Created Date: Jan 28 2019 12:37PM