Thermal imaging technique to detect delaminations in CFRP-plated concrete

Davor G. Mandic; Richard E. Martin; John H. Hemann

doi:10.1117/12.301530

31 March 1998 Thermal imaging technique to detect delaminations in CFRP-plated concrete

Davor G. Mandic, Richard E. Martin, John H. Hemann

Proceedings Volume 3396, Nondestructive Evaluation of Materials and Composites II; (1998) https://doi.org/10.1117/12.301530
Event: Non-Destructive Evaluation Techniques for Aging Infrastructure and Manufacturing, 1998, San Antonio, TX, United States

Abstract

A thermographic technique for detecting disbonds and delaminations in concrete beams reinforced with bonded sheets of unidirectional carbon fiber reinforced plastic is described. Concrete slab test specimens are fabricated with seeded flaws of various thickness and depth from the surface. The specimens are briefly heated with a projector heat source and infrared images are captured. Digital image processing techniques are applied in order to improve image quality. Flaws are identified. Advantages and limitations of this method are discussed.

Citation Download Citation

Davor G. Mandic, Richard E. Martin, and John H. Hemann "Thermal imaging technique to detect delaminations in CFRP-plated concrete", Proc. SPIE 3396, Nondestructive Evaluation of Materials and Composites II, (31 March 1998); https://doi.org/10.1117/12.301530

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