분사식 FRP에 의한 구조물의 보강 성능 및 반발률 평가Evaluation on Strengthening Capacities and Rebound Rate of Structures with Sprayed FRP
- Other Titles
- Evaluation on Strengthening Capacities and Rebound Rate of Structures with Sprayed FRP
- Authors
- 한승철; 양준모; 윤영수
- Issue Date
- 2008
- Publisher
- 한국구조물진단유지관리공학회
- Keywords
- 구속효과; 휨보강; 유리 섬유; 분사식 FRP; 폴리에스테르; 반발률; Confining effect; Flexural strengthening; Glass fiber; Sprayed FRP; Polyester; Rebound rate
- Citation
- 한국구조물진단유지관리공학회 논문집, v.12, no.1, pp.193 - 202
- Indexed
- KCI
- Journal Title
- 한국구조물진단유지관리공학회 논문집
- Volume
- 12
- Number
- 1
- Start Page
- 193
- End Page
- 202
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/125077
- ISSN
- 2234-6937
- Abstract
- This paper investigates experimentally the confining effect, strengthening capacity and rebound rate of sprayed Fiber-Reinforced-Polymer (SFRP). From the method, resin and chopped fibers are sprayed separately from the nozzle with high pressure, and then they are attached to the concrete surface, so structure could be repaired. To evaluate the strengthening effect of sprayed FRP, cylindrical specimens and beam specimens were strengthening with SFRP. As main material of FRP, glass fiber and polyester resin are used. To investigate the optimum condition of sprayed FRP, the effects of fiber length, coating thickness, fiber volume ratio and concrete strength were examined. Capacities of sprayed FRP method were also compared to the FRP sheet method. In case of the sprayed FRP, rebound rate is important parameter considering economical efficiency and constructibility, so rebound rate of was discussed. From the test results, optimum conditions of sprayed FRP were determined. SFRP method showed superior strengthening capacities than FRP sheet method.
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Collections - College of Engineering > School of Civil, Environmental and Architectural Engineering > 1. Journal Articles
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