Long-Term Effect of Chemical Environments on FRP Reinforcing Bar for Concrete Reinforcement

Park, Chan-Gi; Won, Jong-Pil; Yoo, Jung-Kil

doi:10.4334/JKCI.2003.15.6.811

Title & Authors

Long-Term Effect of Chemical Environments on FRP Reinforcing Bar for Concrete Reinforcement
Park, Chan-Gi; Won, Jong-Pil; Yoo, Jung-Kil;

Abstract

The corrosion of steel reinforcing bar(re-bar) has been the major cause of the reinforced concrete deterioration. FRP(Fiber-reinforced polymer) reinforcing bar has emerged as one of the most promising and affordable solutions to the corrosion problems of steel reinforcement in structural concrete. However, FRP re-bar is pone to deteriorate due to other degradation mechanisms than those for steel. The high alkalinity of concrete, for instance, is a possible degradation source. Other potentially FRP re-bar aggressive environments are sea water, acid solution and fresh water/moisture. In this study long-term durability performance of FRP re-bar were evaluated. The mechanical and durability properties of two type of CFRP-, GFRP re-bar and one type of AFRP re-bar were investigated; the FRP re-bars were subjected to alkaline solution acid solution, salt solution and deionized water. The mechanical and durability properties were investigated by performing tensile, compressive and short beam tests. Experimental results confirmed the desirable resistance of FRP re-bar to aggressive chemical environment.

Keywords

acid colution;alkaline;corrosion;deionized water;FRP re-bar;salt solution;

Language

Korean

Cited by

6time(s) in KSCD

1.

고연성 하이브리드 FRP 보강근 및 인장 거동 예측 모델 개발,원종필;박찬기;

대한토목학회논문집, 2004. vol.24. 3A, pp.491-500

2.

콘크리트 보강용 FRP 보강근의 수분 민감성 및 열화 특성,원종필;박찬기;

대한토목학회논문집, 2004. vol.24. 2A, pp.381-390

3.

콘크리트 보강용 FRP 리바의 촉진환경 노출후 인장 및 부착 특성,박찬기;원종필;

한국농공학회논문집, 2005. vol.47. 2, pp.73-84

4.

하이브리드형 방식 폴리머 시멘트 슬러리의 인장특성 및 접착성,조영국;

한국콘크리트학회논문집, 2008. vol.20. 5, pp.635-642

5.

고무댐에 적용하기 위한 유리섬유보강 복합재료 클랩핑 플레이트의 내구 특성,이정우;박찬기;김종옥;이승기;김필식;

한국농공학회논문집, 2011. vol.53. 5, pp.17-23

6.

고온손상된 GFRP 보강근의 장기 잔존 계면전단강도 예측,김민철;문도영;김성도;

한국구조물진단유지관리공학회 논문집, 2014. vol.18. 3, pp.108-115

3time(s) in CrossRef

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Comparison between Spatial Interpolation Methods of Temperature Data for Garlic Cultivation, Journal of The Korean Society of Agricultural Engineers, 2011, 53, 5, 1

2.

Durability Characteristics of Glass Fiber Reinforced Polymer Composite Clapping Plates for Application of Rubber Dam, Journal of The Korean Society of Agricultural Engineers, 2011, 53, 5, 17

3.

Prediction of Long-term Residual Inter-laminar Shear Strength of Thermally Damaged GFRP Rebar, Journal of the Korea institute for structural maintenance and inspection, 2014, 18, 3, 108

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