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http://dx.doi.org/10.5392/JKCA.2015.15.08.397

Characteristics of Flexural Capacity and Ultrasonic in RC member with Corroded Steel and FRP Hybrid Bar  

Choi, Se-Jin (원광대학교 건축공학과)
Mun, Jin-Man (한남대학교 건설시스템공학과)
Park, Ki-Tae (한국건설기술연구원 구조융합연구소)
Park, Cheol-Woo (강원대학교 사회기반시스템공학부)
Kwon, Seung-Jun (한남대학교 건설시스템공학과)
Publication Information
The Journal of the Korea Contents Association / v.15, no.8, 2015 , pp. 397-407 More about this Journal
Abstract
Concrete is a attractive construction material, however durability problem occur due to steel corrosion, which leads propagation to structural safety problem. The recently developed FRP (Fiber Reinforced Plastic) Hybrid Bar has an engineering merit of both structural steel and FRP. Accelerated corrosion test for RC (Reinforced Concrete) samples with normal steel and FRP Hybriud Bar are performed and their flexural capacity is evaluated. Furthermore UV(Ultrasonic Velocity) measurement is attempted for analysis of variation of UV due to corrosion condition. After corrosion test, there is no significant reduction in RC beam with FRP hybrid bar but 11.5% of reduction in the case of normal steel is evaluated with 3.3% of UV reduction. For commercial production of FRP hybrid bar, bond strength evaluation through long-term submerged corrosion is required.
Keywords
Durability; Corrosion; Steel; FRP Hybrid Bar; Ultrasonic Velocity;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
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