Fundamental Study on the Limit of Thermographic Survey Applied to Detection of Void in Concrete

적외선법을 이용한 콘크리트 공동의 적용한계에 관한 기초적 연구

This study describes the results of experiment and numerical analysis for heating image by thermographic method when the size of void in concrete are changed. By comparing analytical solution by finite element method with measured image by thermography, the relationships between the surface temperature which can be confirmed by this method, the size of void and optimum time for detection of void and the difference of temperature are cleared.