Non-destructive evaluation techniques of reinforcing steel corrosion using infrared thermography

This corrosion of reinforcing steel in concrete structures is detrimental to its service life. In order to increase lifespan and maintain serviceability, a qualitative measurement technique that can measure the extent of corrosion of reinforcing steel need to be developed. The purpose of this study is to develop a technique to measure corrosion of reinforcing steel using infrared thermal photographic data. The experimental results show that a test body emits stronger infrared thermal distribution on concrete surface that contains more corroded reinforcing steel.