Non-Destructive Corrosion Measurement Technique of Reinforcing Bars Using Infrared Thermography according to Atmosphere Temperature

대기온도에 따른 적외선 열화상 처리기법을 이용한 철근의 부식률 측정 기법

This study presents a technique to quantitatively measure the corrosion level of a reinforcing bar using the infrared thermography system. The temperature-distribution of the concrete surface is monitored and the temperature change of the reinforcing bar is analysed in terms of corrosion level and concrete cover depth. The experimental results indicate that temperature increase of the reinforcing bar is significant when the corrosion level is high, which implies that the quantity of heat is strongly dependent on corrosion level. Also, as the concrete cover depth of the specimen and the atmosphere temperature increase, the temperature variation becomes small.