Field testing of hand-held infrared thermography, phase II TPF-5(247) : final report.

Details

• Creators:
  Washer, Glenn A. ; Dawson, James ; Ruiz-Fabian, Pedro ; Sultan, Ali ; Trial, Mike ; Fuchs, Paul A
• Corporate Creators:
  University of Missouri--Columbia. Department of Civil and Environmental Engineering
• Corporate Contributors:
  Missouri. Department of Transportation. Construction and Materials Division ; United States. Federal Highway Administration
• Subject/TRT Terms:
  • Bituminous overlays
  • Concrete bridges
  • Condition surveys
  • Field tests
  • Finite element method
  • Guidelines
  • Implementation
  • State departments of transportation
  • Technology assessment
  • Thermographs Concrete bridges
  More +
• Publication/ Report Number:
  cmr 16-007
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States;Missouri
• Edition:
  TPF-5(147) Final Report (November 2011-May 2016)
• Corporate Publisher:
  Missouri. Department of Transportation
• Abstract:
  This report is the second of two volumes that document results from the pooled fund study TPF-5 (247), Development of ; Handheld Infrared Thermography, Phase II. The interim report (volume I) studied the implementation of handheld thermography ; by participating state Departments of Transportation (DOTs). This final report (volume II) provides a summary of field testing ; conducted to evaluate the capabilities of two different IR imaging technologies for detecting subsurface damage in concrete. The ; IR-UTD technology collects thermal images over a period of time; these data are processed to measure thermal inertia of a ; material. The IR-UTD technology is an entirely new approach for imaging damage in concrete structures. The IR-DSS ; technology automatically captures thermal images while the system is moved from one position to another. The IR-DSS ; technology produces images based on the radiant thermal energy from a material in the same manner as other typical thermal ; imaging systems. However, the IR-DSS has a unique design that allows the system to be implemented from different mobile ; platforms and uses a precision encoder to trigger data collection. ; In general, it was found that the IR-UTD technologies had capabilities that exceeded the capabilities of conventional IR imaging. ; The technology provided highly accurate data that documented the size and shape of delaminations in bridge decks and other ; structures. The IR-UTD technology also provided data on the depth of damage and could image the structural features of a bridge. ; Traffic control was not required to implement the IR-UTD technology. ; The IR-DSS capability was demonstrated to include the ability to produce spatially-referenced images that provided accurate ; depictions of subsurface damage, and these data were presented to-scale in a plan-view image of an entire deck. Traffic control ; was required to implement this technology, because the travel speed of the system is limited to < 10 mph. ; Author ORCID: Ali Sultan, http://orcid.org/0000-0002-9717-5231
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• Format:
  PDF
• Funding:
  MoDOT project #TRyy1144;FHWA TPF-5(147)
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/31046/dot_31046_DS1.pdf
• File Type:
  [PDF - 7.26 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:74f3973a987a87afe4f8cdbacf4e62e4cdd5a778510913e351552766031255d8ae6251e71f5e45f83f9b1c59bf563ac6041212047204a810409507805f1436a0