Forensic Study of Early Failures with Unbonded Concrete Overlays

A forensic investigation was conducted to identify failure mechanisms responsible for early failures of unbonded concrete overlays on selected projects in Ohio, including I-70 in Madison County, I-77 in Washington and Noble Counties, and I-90 in Lake County, plus a project in US Route 30 in Ashland County that was one of the better performing jointed plain concrete (JPC) overlays in Ohio. Standard NCHRP procedures (Report 747) were generally followed. Field inspections included visual assessment; distress survey; falling weight deflectometer; MITScan; and collection of core specimens. Laboratory testing included core dimensions, material mechanical properties, and petrographic analysis. HIPERPAV analysis was conducted to evaluate the concrete strength development in early stage. A finite element analysis was conducted to evaluate structural failure mechanisms. Recommendations were made for ODOT to improve performance and prevent similar failures in the future.

• Record URL:
  http://cdm16007.contentdm.oclc.org/cdm/ref/collection/p267401ccp2/id/15765
• Record URL:
  https://rosap.ntl.bts.gov/view/dot/34886
• Corporate Authors:

  Ohio Research Institute for Transportation and the Environment

  Athens, OH  United States 

  Ohio Department of Transportation

  1980 W. Broad Street
  Columbus, OH  United States  43223

  Federal Highway Administration

  Washington, DC  United States 
• Authors:
  • Sargand, Shad
  • Green, Roger
  • Zhu, Junqing
  • Khoury, Issam
• Publication Date: 2017-11

Language

• English

Media Info

• Media Type: Digital/other
• Edition: Final Report
• Features: Appendices; Figures; Photos; References; Tables;
• Pagination: 252p

Subject/Index Terms

• TRT Terms: Concrete overlays; Failure analysis; Falling weight deflectometers; Finite element method; Forensic science; Pavement distress; Pavement performance
• Uncontrolled Terms: Unbonded concrete overlays
• Geographic Terms: Ohio
• Subject Areas: Design; Highways; Pavements;

Filing Info

• Accession Number: 01663399
• Record Type: Publication
• Report/Paper Numbers: FHWA/OH-2017-38
• Contract Numbers: SJN 134996
• Files: NTL, TRIS, ATRI, USDOT, STATEDOT
• Created Date: Mar 21 2018 10:12AM