Forensic Study of Early Failures with Unbonded Concrete Overlays

Sargand, Shad M.; Green, Roger; Zhu, Junqing; Khoury, Issam S.

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Forensic Study of Early Failures with Unbonded Concrete Overlays

2017-11-01
By Sargand, Shad M. ; Green, Roger ; Zhu, Junqing

File Language:

English

[PDF - 12.03 MB]

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Creators:

Sargand, Shad M. ; Green, Roger ; Zhu, Junqing ; Khoury, Issam S.
Corporate Creators:

Ohio University. Ohio Research Institute for Transportation and the Environment (ORITE)
Corporate Contributors:

Ohio. Department of Transportation. Office of Statewide Planning and Research ; United States. Federal Highway Administration
Subject/TRT Terms:
Publication/ Report Number:

FHWA/OH-2017-38
Resource Type:

Tech Report
Geographical Coverage:

United States;Ohio
Edition:

Final Report, August 2014 - September 2017
Corporate Publisher:

Ohio Research Institute for Transportation and the Environment
Abstract:

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.
Format:

PDF
Funding:

SJN 134996
Download URL:

https://rosap.ntl.bts.gov/view/dot/34886/dot_34886_DS1.pdf
File Type:

[PDF - 12.03 MB]
Collection(s):

US Transportation Collection
Main Document Checksum:

urn:sha-512:1dff2e7146343975c9efe48b8828921875463a06b5fd761cff2ccbb101ef028635b366e03d9a2a730d8a86c5d7b365c533c80100e7e86163dacd6f88eb130c8c

File Language:

English

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