Article Article
Capability of Infrared Thermography for Bridge Inspection: Correlation Between Delamination Size and Detectable Depth

Infrared thermography (IRT) has been used experimentally for concrete delamination detection. Past studies were conducted with limited experimental setups, limited conditions, and a lack of comparable IR camera technologies, which make a difference in delamination detection. Thus, there are inconsistencies in the results reported in the literature. In this study, finite element (FE) models of concrete blocks with artificial delamination were developed and analyzed to explore sensitive parameters for the most effective utilization of IRT. After FE model was validated by comparing IRT test results, critical factors of detectability for IRT regarding the size of delamination (area, thickness and volume) were explored by using the FE model. This study can conclude that the most critical factor regarding delamination detection using IRT is the area of delamination; subsequently, the thickness affects the temperature difference of the surface. The volume of delamination by itself is not a significant factor when using IRT. Furthermore, it was found that the effect of delamination size converges to a certain value when the area is 40 × 40 cm and the thickness is 1 cm. This study shows the potential to bring significant improvement for bridge inspection to conduct efficient and effective using IRT.


[1] S. Hiasa, R. Birgul, and F. N. Catbas, “Infrared thermography for civil structural assessment: demonstrations with laboratory and field studies,” J. Civ. Struct. Heal. Monit., vol. 6, no. 3, pp. 619–636, Jul. 2016.

[2] G. Washer, R. Fenwick, and N. Bolleni, “Development of Hand-held Thermographic Inspection Technologies,” Report No. OR10-007, 2009.

[3] G. Washer, R. Fenwick, and N. Bolleni, “Effects of Solar Loading on Infrared Imaging of Subsurface Features in Concrete,” J. Bridg. Eng., vol. 15, no. August, pp. 384–390, 2010.

[4] N. Gucunski, S. Nazarian, D. Yuan, and D. Kutrubes, “Nondestructive Testing to Identify Concrete Bridge Deck Deterioration,” Transportation Research Board, SHRP 2 Report S2-R06A-RR-1, Washington, D.C., USA, 2013.

[5] S.-H. Kee, T. Oh, J. S. Popovics, R. W. Arndt, and J. Zhu, “Nondestructive Bridge Deck Testing with Air-Coupled Impact-Echo and Infrared Thermography,” J. Bridg. Eng., vol. 17, no. 6, pp. 928–939, 2012.

[6] A. Watase, R. Birgul, S. Hiasa, M. Matsumoto, K. Mitani, and F. N. Catbas, “Practical identification o f favorable time windows for infrared thermography for concrete bridge evaluation,” Constr. Build. Mater., vol. 101, pp. 1016–1030, 2015.

[7] D. G. Aggelis, E. Z. Kordatos, D. V. Soulioti, and T. E. Matikas, “Combined use of thermography and ultrasound for the characterization of subsurface cracks in concrete,” Constr. Build. Mater., vol. 24, no. 10, pp. 1888–1897, 2010.

[8] M. Yuan, H. Wu, Z. Tang, H. Kim, S. Song, and J. Zhang, “Prediction of effect of defect parameters on the thermal contrast evolution during flash thermography by finite element method_Yuan,” J. Korean Soc. Nondestruct. Test., vol. 34, no. 1, pp. 10–17, 2014.

[9] B. Cannas, S. Carcangiu, G. Concu, and N. Trulli, “Modeling of Active Infrared Thermography for Defect Detection in Concrete Structures,” COMSOL Conf., p. 7, 2012.

[10] G. C. Holst, Common sense approach to thermal imaging. Winter Park, FL, USA: JCD Publishing, 2000.

[11] F. Khan, M. Bolhassani, A. Kontsos, A. Hamid, and I. Bartoli, “Modeling and experimental implementation of infrared thermography on concrete masonry structures,” Infrared Phys. Technol., vol. 69, pp. 228–237, 2015.

[12] D. M. McCann and M. C. Forde, “Review of NDT methods in the assessment of concrete and masonry structures,” NDT E Int., vol. 34, no. 2, pp. 71–84, 2001.

[13] X. P. V Maldague, “Introduction to NDT by active infrared thermography,” Mater. Eval., vol. 60, no. 9, pp. 1060–1073, 2002.

[14] R. C. Waugh, “Development of Infrared Techniques for Practical Defect Identification in Bonded Joints,” in Development of Infrared Techniques for Practical Defect Identification in Bonded Joints, 1st ed., Springer International Publishing, 2016, pp. 21–37.

[15] S. Hiasa, “Investigation of Infrared Thermography for Subsurface Damage Detection of Concrete Structures,” Electronic Theses and Dissertations. Paper 5063. <>, 2016.

[16] S. Hiasa, F. N. Catbas, M. Matsumoto, and K. Mitani, “Monitoring Concrete Bridge Decks using Infrared Thermography with High Speed Vehicles,” Struct. Monit. Maintenance, An Int. J., vol. 3, no. 3, pp. 277–296, 2016.

[17] S. Hiasa, F. N. Catbas, M. Matsumoto, and K. Mitani, “Feasibility of Infrared Thermography for Bridge Deck Inspection without Lane Closure, and The Uncertainties - Preliminary Report -,” in TRB 95th Annual Meeting, 2016, pp. 16–4104.

[18] ASTM, Standard Test Method for Detecting Delaminations in Bridge Decks Using Infrared Thermography, D4788-3rd ed., no. Reapproved 2013. West Conshohocken, PA, USA: ASTM International, 2014.

[19] J. Tashan, R. Al-mahaidi, and A. Mamkak, “Defect size measurement and far distance infrared detection in CFRP-concrete and CFRP-steel systems,” Aust. J. Struct. Eng., vol. 7982, no. May, p. In press, 2015.

[20] K. Hashimoto and Y. Akashi, “Points to consider for photography by infrared cameras with different wavelength detection region,” in 65th JSCE Annual Meeting, 2010, p. VI-160.

[21] T. Nishikawa, A. Hirano, and E. Kamada, “Experimental study on thermography method for external wall removement finished with ceramic tile,” Archit. Inst. Japan, vol. 529, pp. 29–35, 2000.

[22] S. Nakamura, S. Takaya, Y. Maeda, T. Yamamoto, and T. Miyagawa, “Spalling time prediction by using infrared thermography,” J. Japan Soc. Civ. Eng. Ser. E2 (Materials Concr. Struct., vol. 69, no. 4, pp. 450–461, 2013.

[23] S. Yehia, O. Abudayyeh, S. Nabulsi, and I. Abdelqader, “Detection of Common Defects in Concrete Bridge Decks Using Nondestructive Evaluation Techniques,” J. Bridg. Eng., vol. 12, no. April, pp. 215–225, 2007.

[24] C. Maierhofer, A. Brink, M. Ro, and H. Wiggenhauser, “Quantitative impulse-thermography as non-destructive testing method in civil engineering – Experimental results and numerical simulations,” vol. 19, pp. 731–737, 2005.

[25] C.-C. Cheng, T. Cheng, and C. Chiang, “Defect detection of concrete structures using both infrared thermography and elastic waves,” Autom. Constr., vol. 18, pp. 87–92, 2008.

[26] R. Rumbayan and G. A. Washer, “Modeling of Environmental Effects on Thermal Detection of Subsurface Damage in Concrete,” Res. Nondestruct. Eval., vol. 25, no. 4, pp. 235–252, 2014.

[27] COMSOL, “Heat Transfer Module User’s Guide Version 5.1,” 2015.

[28] Google, “Google Maps,” 2015. [Online]. Available:

[29] WeatherUnderground, “Weather History for Orlando, FL [KFLORLAN179],” 2015. [Online]. Available: ID=KFLORLAN179#history/tdata/s20151219/e20151219/mdaily.

[30] M. Clark, D. McCann, and M. Forde, “Application of infrared thermography to the non-destructive testing of concrete and masonry bridges,” NDT E Int., vol. 36, no. 4, pp. 265–275, 2003. 

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