STUDY ON INTERNAL EVALUATION OF CONCRETE BY INFRARED THERMOGRAPHY

In this study, the effects of various factors on the thermal conductivity characteristics of concrete and the accuracy of internal evaluation by using the inverse analysis for an infrared thermography were investigated for the purpose of quantification of the internal evaluation of concrete. As a result, the following conclusions were obtained by this study: The thermal conductivity characteristics of concrete are affected by the mix proportion and the drying condition of concrete. The thermal diffusivities of concrete obtained from the uniaxial unsteady heat conduction experiments are available for simulating the heat transfer in concrete, and the accuracy of internal evaluation can be improved.