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GFRP 보강근의 부착파괴면Bond Failure Surface of Glass Fiber Reinforced Polymer Bars
- Other Titles
- Bond Failure Surface of Glass Fiber Reinforced Polymer Bars
- Issue Date
- 2008
- Publisher
- 한국콘크리트학회
- Keywords
- glass fiber reinforced polymer bars; bond strength; high strength concrete; bond failure surface; 유리섬유보강근; 부착강도; 고강도콘크리트; 부착파괴면
- Citation
- 콘크리트학회 논문집, v.20, no.3, pp.383 - 391
- Indexed
- KCI
- Journal Title
- 콘크리트학회 논문집
- Volume
- 20
- Number
- 3
- Start Page
- 383
- End Page
- 391
- ISSN
- 1229-5515
- Abstract
- The effects of concrete strength on bond-slip behavior and the failure mechanisms of glass fiber reinforced polymer (GFRP) bar embedded in concrete under direct pullout were investigated in this study. Total of twenty seven specimens were prepared by placing two different types of GFRP bars and conventional steel rebar in 25 MPa, 55 MPa, and 75 MPa concrete and tested according to CSA S806-02. The test results showed that the bond strength of the GFRP rebars as well as the steel increased with the concrete strength. However, the increase in the bond strength with respect to the concrete strength was not as significant in the GFRP series as the steel, and it was attributed to the interlaminar failure mechanism observed in the GFRP test specimens.
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