Determination of Thermography Modes for Recording Delamination between Composite Material and Reinforced Concrete Structures

Abstract:

This paper presents the results of experimental and theoretical studies justifying the possibility of using infrared (IR) thermography for detection of deformation debonding of composite material from a reinforced concrete structure that occurs under operating conditions and develops according to the cohesion scenario. The analysis of the results allowed us to determine the optimal inspection parameters of IR thermography to assure best registration of the presence of fiber composite material debonding from the surface of a concrete structure. It has been found that the most accurate and timely information about debonding in a carbon fiber sheet/epoxy/concrete/delamination/concrete system can be obtained during the cooling stage after pulse heating of the structure surface, since at this stage the magnitude of thermal response to debonding reaches its maximum.

• Periodical: Solid State Phenomena (Volume 243)
• Pages: 97-104
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.243.97
• Online since: October 2015
• Authors: A. Bykov*, I. Shardakov, A. Shestakov
• Keywords: Concrete, Debonding, Mathematical Modeling, Thermography

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