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http://dx.doi.org/10.11112/jksmi.2012.16.6.082

Evaluation of Concrete Bridge Deck Deterioration Using Ground Penetrating Radar Based on an Extended Common Mid-Point Method  

Baek, Jong Eun (세종대학교 건설환경공학과)
Lee, Hyun Jong (세종대학교 건설환경공학과)
Oh, Kwang Chin (한국시설안전공단 기술본부 시설안전연구소)
Eom, Byung Sik (한국건설기술연구원 SOC성능연구소 도로연구실)
Publication Information
Journal of the Korea institute for structural maintenance and inspection / v.16, no.6, 2012 , pp. 82-92 More about this Journal
Abstract
This study proposed a new non-destructive evaluation method for concrete bridge deck deterioration using ground penetrating radar (GPR). To calculate dielectric constant of the concrete bridge deck, an extended common mid-point (XCMP) method was developed for a two-layered structure using an air-coupled GPR antenna setup. The deterioration conditions of the concrete bridge deck such as deterioration depth was evaluated based on the dielectric constant and surface-to-average dielectric constant ratio of the concrete bridge deck. A GPR field test was conducted on an old concrete bridge with asphalt concrete surfacing to validate the new evaluation method. The test results showed that the newly proposed method estimated pavement thickness and deterioration depth of the concrete deck in a reasonable level.
Keywords
Concrete bridge deck; Concrete deterioration; Dielectric constant; Ground Penetrating Radar(GPR); Extended Common Mid-Point (XCMP) Method; Non-Destructive test;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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