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Forensic Study and Finite Element Modeling of Unbonded Concrete Overlay Pavements on Interstate 70 & 77 in Ohio

Zhu, Junqing
http://orcid.org/0000-0003-4134-4064
http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1501156328255479

Abstract Details

2017, Doctor of Philosophy (PhD), Ohio University, Civil Engineering (Engineering and Technology).
The installation of an unbonded concrete overlay (UBCO) is a widely-used rehabilitation technique by Ohio Department of Transportation (ODOT). For the most part these overlays have performed as expected. However, occasionally some UBCOs have performed below expectations, such as in Interstate 70 (I-70) in Madison County and Interstate 77 (I-77) in Washington and Noble County. A forensic study was conducted to investigate the causes of premature failures with UBCOs on I-70 and I-77. NCHRP standard procedures were reviewed and generally followed. Falling weight deflectometer (FWD) and distress survey data were collected from the field. MIT (Magnetic Imaging Tomography)-Scan2 was used to evaluate dowel misalignment. Concrete samples were taken from the field and were tested in the laboratory. HIPERPAV was used to evaluate early behavior of the Portland cement concrete. Finite element analysis was conducted using Abaqus to evaluate structural failure mechanisms. Key findings include: sections on I-70 with thicker bondbreaker delayed distress formation; and a lack of drainage led to the presence of water in the joints, which contributed to transverse cracking and corner break. Dowel bar inserter used during construction of I-77 contributed to cracking. Recommendations were made to ODOT to improve performance and prevent similar failures in the future.
Shad Sargand, Ph.D. (Advisor)
Teruhisa Masada, Ph.D. (Committee Member)
Sang-Soo Kim, Ph.D. (Committee Member)
Issam Khoury, Ph.D. (Committee Member)
Xiaoping Shen, Ph.D. (Committee Member)
Xiong Yu, Ph.D. (Committee Member)
234 p.
Civil Engineering
unbonded concrete overlay; pavement distress; forensic investigation; falling weight deflectometer; MIT-scan2; finite element method; HIPERPAV

Recommended Citations

Citations

  • Zhu, J. (2017). Forensic Study and Finite Element Modeling of Unbonded Concrete Overlay Pavements on Interstate 70 & 77 in Ohio [Doctoral dissertation, Ohio University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1501156328255479

    APA Style (7th edition)

  • Zhu, Junqing. Forensic Study and Finite Element Modeling of Unbonded Concrete Overlay Pavements on Interstate 70 & 77 in Ohio. 2017. Ohio University, Doctoral dissertation. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1501156328255479.

    MLA Style (8th edition)

  • Zhu, Junqing. "Forensic Study and Finite Element Modeling of Unbonded Concrete Overlay Pavements on Interstate 70 & 77 in Ohio." Doctoral dissertation, Ohio University, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1501156328255479

    Chicago Manual of Style (17th edition)

ohiou1501156328255479
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© 2017, all rights reserved.
This open access ETD is published by Ohio University and OhioLINK.