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Application of infrared camera for steel bridge maintenance
Author(s): Takahide Sakagami; Yoshiaki Mizokami; Daiki Shiozawa; Masahiro Hayashi; Masahiro Takeguchi
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Paper Abstract

Heavy-duty anticorrosion coating with multiple-layered paints is applied to long-span steel bridge members on the sea. By aging deterioration, the coating is worn from surface year by year. Appropriate repainting programs should be adopted for the maintenance of the bridges according to the evaluation of wear extent. In this study a new nondestructive evaluation technique using short wavelength infrared (SWIR) camera, that enables us to easily detect the wear loss of surface fluororesin coating layer, is developed based on the difference in spectral absorptance between surface fluororesin coating and inner-layer epoxy resin coating.

Paper Details

Date Published: 14 May 2018
PDF: 6 pages
Proc. SPIE 10661, Thermosense: Thermal Infrared Applications XL, 106610T (14 May 2018); doi: 10.1117/12.2307654
Show Author Affiliations
Takahide Sakagami, Kobe Univ. (Japan)
Yoshiaki Mizokami, Honshu-Shikoku Bridge Expressway Company Ltd (Japan)
Daiki Shiozawa, Kobe Univ. (Japan)
Masahiro Hayashi, Honshu-Shikoku Bridge Expressway Company Ltd (Japan)
Masahiro Takeguchi, Honshu-Shikoku Bridge Expressway Company Ltd (Japan)


Published in SPIE Proceedings Vol. 10661:
Thermosense: Thermal Infrared Applications XL
Douglas Burleigh; Jaap de Vries, Editor(s)

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