Application of infrared camera for steel bridge maintenance

Takahide Sakagami; Yoshiaki Mizokami; Daiki Shiozawa; Masahiro Hayashi; Masahiro Takeguchi

doi:10.1117/12.2307654

14 May 2018 Application of infrared camera for steel bridge maintenance

Takahide Sakagami, Yoshiaki Mizokami, Daiki Shiozawa, Masahiro Hayashi, Masahiro Takeguchi

Proceedings Volume 10661, Thermosense: Thermal Infrared Applications XL; 106610T (2018) https://doi.org/10.1117/12.2307654
Event: SPIE Commercial + Scientific Sensing and Imaging, 2018, Orlando, FL, United States

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.

Citation Download Citation

Takahide Sakagami, Yoshiaki Mizokami, Daiki Shiozawa, Masahiro Hayashi, and Masahiro Takeguchi "Application of infrared camera for steel bridge maintenance", Proc. SPIE 10661, Thermosense: Thermal Infrared Applications XL, 106610T (14 May 2018); https://doi.org/10.1117/12.2307654

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