Although the use of fiber reinforced polymer (FRP) composites is widely accepted as a means of rehabilitating deteriorating and under-strength concrete components, there is still a lack of approaches for rapid assessment of defects. This is even more critical since a number of process-related defects can increase in size over time resulting in premature failure of the component. This paper describes the use of Infra-Red (IR) Thermography as a means of rapid non-destructive inspection of FRP rehabilitation which not only enables inspection immediately after application and cure of the FRP, but also allows for the quantification of defect extent, as well as the progression of these defects over time. The approach is demonstrated on a large-scale test typical of rehabilitation of bridge deck slabs.
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