Premature Longitudinal Cracking Investigation on Unbonded Concrete Overlay

The objective of this project is to determine the cause of longitudinal cracking in an unbonded concrete overlay (with short joint spacing) on an I-72 experimental feature project. This project will evaluate the existing literature and design procedures for potential mechanisms that are contributing to the premature distresses as exhibited on the eastbound stretch of I-72 east of the Riverton exit. These distresses have not occurred in the westbound lanes of I-72 that utilized a nonwoven geotextile fabric interlayer. Specifically, this study will investigate past published testing to assess the interlayer impact on unbonded concrete overlay response and performance. Additionally, a laboratory investigation is proposed to supplement the findings in the literature and to confirm the mechanism(s) causing the observed, premature longitudinal cracking.


    • English


    • Status: Active
    • Funding: $36000
    • Contract Numbers:


    • Sponsor Organizations:

      Illinois Department of Transportation

      Bureau of Materials and Physical Research
      126 East Ash Street
      Springfield, IL  United States  62704-4766
    • Managing Organizations:

      University of Illinois, Urbana-Champaign

      Illinois Center for Transportation
      1611 Titan Drive
      Rantoul, IL  United States  61866
    • Start Date: 20210501
    • Expected Completion Date: 20220131
    • Actual Completion Date: 0

    Subject/Index Terms

    Filing Info

    • Accession Number: 01771083
    • Record Type: Research project
    • Source Agency: Illinois Department of Transportation
    • Contract Numbers: R27-SP48
    • Files: RIP, STATEDOT
    • Created Date: May 3 2021 10:56AM