STUDY ON INFRARED THERMOGRAPHIC INSPECTION OF DE-BONDING OF AIRPORT ASPHALT PAVEMENT

This paper presents the results of field trials and thermal analysis conducted to verify the applicability of infrared thermographic inspection method to airfield pavements. As the results of field trials, it was confirmed that de-bonding can be found by infrared thermography. As the results of thermal analyses, it was clarified that amount of solar radiation, wind velocity and air temperature difference between day and night affected the surface temperature difference due to the existence of de-bonding, and appropriate time for the infrared thermographic inspection was also verified.