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NDE of FRP Wrapped Composite Members to Detect Subsurface Debonds

This paper discusses the use of infrared thermography and ground penetrating radar for subsurface debond detection of concrete cylinders wrapped with either carbon or glass fiber wraps (CFRP or GFRP). These two NDE techniques were chosen because of their capability of rapid data acquisition in the field. The applicability of both these NDE techniques for detection of air-filled and water-filled debonds under CFRP and GFRP wraps are discussed and compared in this paper.

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