Effect of Moisture Content on Ultrasonic Infrared Detection of Concrete Structures

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 dete...

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Bibliographic Details
Published in:Key engineering materials 2020-09, Vol.861, p.458-464
Main Authors: Luo, Ming Kai, He, Zhi Wen, Lei, Tang, Zhao, Xin Ming
Format: Article
Language:English
Subjects:
Computer simulation
Concrete
Concrete structures
Excitation
Image detection
Infrared imagery
Moisture content
Simulation
Submerging
Ultrasonic testing
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Summary: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.
ISSN:1013-9826
1662-9795
1662-9795
DOI:10.4028/www.scientific.net/KEM.861.458