2003 Volume 13 Pages 359-364
The establishment of measuring techniques and the efficiency of thermography judgement for soundness, that is useful for the detection of scaling concrete, has been studied with application to the tunnel lining concrete which has poor temperature changing. It evaluated by the infrared images with active heating and their changing.
The result from the analysis was coincidence with the result from the concrete hitting sound inspection, and operation time would be equivalent to that inspection. By this way, scaling within 50mm depth has been detected. Thermography judgement for soundness is expected as a practicable method with further study and research.
