Abstract
Moisture content is an important parameter of concrete material, and ultrasonic excitation infrared thermal image detection technology is a new nondestructive detection technology. In this paper, the relationship between concrete moisture content and ultrasonic excitation infrared thermal image detection technology is studied by experiment and numerical simulation. The moisture content of concrete was changed by immersion method, and the time of immersion was controlled to control the moisture content. It is found that with the increase of water content, the maximum temperature rise of the defect area decreases gradually, that is, the detection effect is weakened. The results of numerical simulation are in good agreement with the experimental results, and the simulation is effective to some extent.
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