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The Non-destructive Inspection Using Infrared Thermal Technique on Reinforced Slopes by Shotcrete  

Shin, Chang-Gun (한국시설안전기술공단 기술개발실)
Lee, Song (서울시립대학교 토목공학과)
Ahn, Sang-Ro (한국시설안전기술공단 기술사업단)
Publication Information
Journal of the Korea institute for structural maintenance and inspection / v.11, no.1, 2007 , pp. 95-102 More about this Journal
Abstract
It needs to Prevent damage as aging shotcrete itself exists as a dangerous component to comuting vehicles or infrastructure due to scaling, spaling, and loosening. However, it is hard to make an approach owing to a steep slope and high work, and there has been indicated a limit that it is difficult to grasp the internal condition of shotcrete on the surface. This study aimed to research internal defects that cannot be observed from the surface, by measuring a subtle thermal transfer on the shotcrete surface by using infrared thermography for overcoming such a technical limit. As a result of conducting an inspection through an analysis on measured data and fieldwork using an endoscope camera, it was impossible to accurately determine the wet part because of an excessive coating of shotcrete, yet, This study is proposed effictively extract a void part of the inside with non-destructive and non-touching method.
Keywords
Reinforced slopes; Shotcrete; Infrared thermal; Structure management;
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