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Title |
Review of the Current infrared Thermorgraphy Techniques for Detecting Defects in Civil Structures
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Authors |
심준기 ; 지광습 ; 박진형 ; 조효남 ; 이종세 |
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Keywords |
Concrete ; Defect ; Infrared Thermography ; Non-destructive Method ; 콘크리트 ; 결함 ; 열화상 기법 ; 비파괴 검사법 |
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Abstract |
In this paper, the basic principle, the application and the limitation of Infrared thermography technique to detect defects in different kinds of concrete structures are reviewed. Considered are voids beneath the concrete surface with experiments, delamination between concrete surface and fiber reinforced polymer sheet, the deterioration of steel bars in reinforced concrete, surface defects in historical buildings, pavements, bridges, and railway track graves. As a result, we conclude that infrared thermography methods are useful for fast detecting defects; however, they are influenced by environmental factors, specially temperature. Therefore it is recommended to use the infrared thermography technique with other NDT equipments to expect better result.
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