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

Details

• Creators:
  Washer, Glenn ; Trial, Mike ; Jungnitsch, Alan ; Nelson, Seth
• Corporate Creators:
  University of Missouri--Columbia. Department of Civil and Environmental Engineering
• Corporate Contributors:
  United States. Federal Highway Administration
• Subject/TRT Terms:
  • Concrete bridges
  • Overlays (Pavements)
  • Thermographs
  • Field tests
  • Condition surveys
  • Finite element method
  • Technology assessment
• Publication/ Report Number:
  cmr 16-007
• Resource Type:
  Tech Report
• Geographical Coverage:
  Missouri
• Corporate Publisher:
  Missouri. Dept. of Transportation. Division of Construction and Materials
• Abstract:
  This report describes research completed to develop and implement infrared thermography, a nondestructive evaluation (NDE) ; technology for the condition assessment of concrete bridge components. The overall goal of this research was to develop new ; technologies to help ensure bridge safety and improve the effectiveness of maintenance and repair. The objectives of the research ; were to: ;  Quantify the capability and reliability of thermal imaging technology in the field ;  Field test and validate inspection guidelines for the application of thermal imaging for bridge inspection ;  Identify and overcome implementation barriers ; The project provided hand-held infrared cameras to participating state Departments of Transportation (project partners), trained ; individuals from these states in camera use, and conducted field tests of the technology. The reliability of the technology was ; assessed, and previously developed Guidelines for field use were evaluated through systematic field testing. The implementation ; of infrared thermography within the participating states was studied during the course of the research to identify implementation ; challenges experienced by users of the technology. Finite element modeling of the thermal behavior of concrete under typical ; environmental conditions was also completed to study the effects of defect depth and thickness and the effect of asphalt overlays. ; Overall, the verification testing and results reported through the implementation study showed that the Guidelines provided ; suitable conditions for detection of subsurface damage in concrete.
  More +
• Format:
  PDF
• Funding:
  MoDOT project #TRyy1144;FHWA TPF-5(147)
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/29671/dot_29671_DS1.pdf
• File Type:
  [PDF - 4.80 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:fcc2df6f403c2295fa3d0bff0f98798b8638962d25d5d0ea387b10f6874579890ce5be6302fc80c5e7d7302f8093df3ec3823b299516bd5f02ad6cde04a6fde7