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http://dx.doi.org/10.4334/JKCI.2011.23.6.809

Bond Properties of GFRP Rebar in Fiber Reinforced Concrete (Engineered Cementitious Composite)  

Choi, Yun-Cheul (Dept. of Architectural Environmental Engineering and Building Service, ChungWoon Univ.)
Park, Keum-Sung (Korea Institute of Construction Technology)
Choi, Chang-Sik (Dept. of Architectural Engineering, Hanyang University)
Choi, Hyun-Ki (Dept. of Architectural Engineering, Hanyang University)
Publication Information
Journal of the Korea Concrete Institute / v.23, no.6, 2011 , pp. 809-815 More about this Journal
Abstract
An experimental investigations on the bond-slip properties of the steel and Glass Fiber Reinforced Polymer(GFRP) bars in engineered cementitious composite (ECC) with Polyvinyl Alcohol (PVA) fibers are presented. Total of 8 beam specimens prepared according to the Rilem procedures with 2% of PVA and PE fiber volume percentage and steel and GFRP reinforcements significantly changed the failure mechanism and slightly improved bond strength. The main objective of the tests was to evaluate the load versus displacement and load versus slip behaviors and the bond strength for the following parameters: concrete type (normal and fiber concrete) and bar diameter (10 and 13 mm). The study results showed that ordinary concrete and ECC specimens showed similar behavior for steel reinforced specimen. However, GFRP reinforced specimen showed different behavior that the steel specimen. The code analytical results showed more accuracy compared to the experimental results as expected in conservative code provisions. Based on the obtained results, it is safe to conclude that the new parameters need to be adopted to ensure safe usage of ECC for construction applications.
Keywords
bond strength; engineered cementitious composite; GFRP rinforcing bar; bond-slip; bond strength;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
연도 인용수 순위
1 김병일, "철근 및 GFRP 보강근의 부착계면에서 할렬균열의 성장억제에 대한 ECC의 효과," 대한건축학회 논문집, 26권, 12호, pp. 133-140.
2 ACI Report 440H, Guide for the Design and Construction of Concrete Reinforced with FRP Bars, American Concrete Institute Committee 440, 2000, pp. 10-30.
3 Somboonsong, W., Harris, H. G., and Ko, K., "Ductile Hybrid Fibre Reinforced Plastic Reinforcing Bar for Concrete Structures: Design Methodology," ACI Materials Journal, Vol. 95, No. 6, 1998, pp. 655-666.
4 Won, J. P., Park, C. G., Kim, H. H., Lee, S. W., and Won, C., "Bond Behavior of FRP Reinforcing Bars in High-Strength Steel Fibre-Reinforced Concrete," Polymers & Polymer Composites, Vol. 15, No. 7, 2007, pp. 569-578.
5 Li, V. C. and Wu, H. C., "Conditions for Pseudo Strain-Hardening in Fiber Reinforced Brittle Matrix Composite," Journal Applied Mechanics, Vol. 45, No. 8, 1992, pp. 390-398.   DOI
6 유영찬, 박지선, 유영준, 박영환, 김긍환, "GFRP 보강근의 설계 인장강도 발현을 위한 적정 그립시스템 개발," 콘크리트학회 논문집, 17권, 6호, 2005, pp. 947-953.   과학기술학회마을   DOI   ScienceOn
7 Rilem-Fip-Ceb, "Bond Test for Reinforcing Steel: 1-Beam Test (7-II-28 D). 2-Pullout Test (7-II-128): Tentative Recommendations," Materials and Structures, Vol. 6, No. 32, 1973, pp. 96-105.
8 Soroushian, P., Mirza, F., and Alhozaimy, A., "Bonding of Confined Steel Fiber Reinforced Concrete to Deformed Bar," ACI Material Journal, Vol. 91, No. 2, 1994, pp. 141-149.
9 American Concrete Institute (ACI), Guide for the Design and Construction of Concrete Reinforced with FRP Bars, ACI 440.1R-06, 2010, pp. 28-30.
10 Okelo, R. and Yuan, R. L., "Bond Strength of Fiber Reinforced Polymer Rebars in Normal Strength Concrete," Journal of Composite Construction, Vol. 9, No. 3, 2005, pp. 203-213.   DOI   ScienceOn
11 Pecce, M., Manfredi, G., and Cosenza, E., "Experimental Response and Code Models of GFRP RC Beams in Bending," J. Composite Structures, Issue 44, 2000, pp. 182-190.
12 Abdalla, H. A., "Evaluation of Deflecton in Concrete Members Reinforced with Fibre Reinforced Polymer (FRP) Bars," Composite Structures, Vol. 56, Issue 1, 2002, pp. 63-71.   DOI   ScienceOn
13 Benmokrane, B., Chaallal, O., and Masmoudi, R., "Flexural Response of Concrete Beams Reinforced with FRP Reinforing Bars," Composite Structures, Vol. 93, No. 1, 1996, pp. 46-55.
14 박찬기, 원종필, 차상선, "보강섬유의 표면처리에 따른 섬유보강 고강도콘크리트와 GFRP 보강근의 부착특성," 콘크리트학회 논문집, 21권, 3호, 2009, pp. 275-282.   과학기술학회마을   DOI   ScienceOn
15 신성우, 안종문, 한범석, 서대원, "FRP 보강근을 주근으로 사용한 콘크리트보의 보강비효과," 대한건축학회논문집, 22권, 2호, 2006, pp. 16-19.   과학기술학회마을
16 이정윤, 이종구, 김태영, 박지선, 박영환, "GFRP 보강근의 부착파괴면," 콘크리트학회 논문집, 20권, 3호, 2008, pp. 383-391.   과학기술학회마을   DOI   ScienceOn