Hybrid Effects of Carbon-Glass FRP Sheets in Combination with or without Concrete Beams
Source abstract
Abstract
The use of carbon fibers (CF) and glass fibers (GF) were combined to strengthen concrete flexural members. In this study, data of tensile tests of 94 hybrid carbon-glass FRP sheets and 47 carbon and GF rovings or sheets were thoroughly investigated in terms of tensile behavior. Based on comparisons between the rule of mixtures and test data, positive hybrid effects were identified for various (GF/CF) ratios. Unlike the rule of mixtures, the hybrid sheets with relatively low (GF/CF) ratios also produced pseudo-ductility. From the calibrated results obtained from experiments, a new analytical model for the stress–strain relationship of hybrid FRP sheets was proposed. Finally, the hybrid effects were verified by structural tests of concrete members strengthened with hybrid FRP sheets and either carbon or glass FRP sheets.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Structural Behavior of Reinforced Concrete · Mechanical Behavior of Composites · Innovative concrete reinforcement materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (18)
Show source-provided references
1. ACI Committee. (1998). 503, Use of Epoxy Compounds with Concrete (ACI 503R-93; Reapproved 1998), ACI, Farmington Hills, Mich., p. 28.
2. ACI Committee. (2002). 440, Guide for the Design and Construction of Externally Bonded FRP Systems for Strengthening Concrete Structures (ACI 440.2R-02), ACI, Farmington Hills, Mich., p. 45.
3. ASTM International. (2008). ASTM D638-08 Standard Test Method for Tensile Properties of Plastics, West Conshohocken, Penn: ASTM International, p. 16.
4. ASTM International. (2008). ASTM D3039/D3039M-08 Standard Test Method for Tensile Properties of Polymer Matrix Composite Materials, ASTM International, West Conshohocken, Pennsylvania, p. 13.
5. Aveston, J., & Sillwood, J. M. (1976). Synergistic fibre strengthening in hybrid composites. Journal of Materials Science,11(10), 1877–1883.10.1007/BF00708266 ↗
6. Bunsell, A. R., & Harris, B. (1974). Hybrid carbon and glass fibre composites. Composites,5, 157–164.10.1016/0010-4361(74)90107-4 ↗
7. CAN/CSA. (2007). S806-02 (R2007), Design and construction of building components with fibre-reinforced polymers, CSA, Mississauga, Canada, p. 206.
8. Choi, D.-U., Kang, T. H.-K., Ha, S–. S., Kim, K.-H., & Kim, W. (2011). Flexural and bond behavior of concrete beams strengthened with hybrid carbon-glass fiber-reinforced polymer sheets. ACI Structural Journal,108(1), 90–98.
9. Chou, T.-W., & Kelly, A. (1980). Mechanical properties of composites. Annual Reviews of Material Science,10, 229–259.10.1146/annurev.ms.10.080180.001305 ↗
10. Cox, H. L. (1952). The elasticity and strength of paper and other fibrous materials. British Journal of Applied Physics,3, 72–79.10.1088/0508-3443/3/3/302 ↗
11. Grace, N. F., Abel-Sayed, G., & Ragheb, W. F. (2002). Strengthening of concrete beams using innovative ductile fiber-reinforced polymer fabric. ACI Structural Journal,99(5), 692–700.
12. Harris, H. G., Somboonsong, W., & Frank, K. K. (1998). New ductile hybrid FRP reinforcing bar for concrete structures. ASCE Journal of Composites for Construction,2(4), 28–36.10.1061/(ASCE)1090-0268(1998)2:1(28) ↗
13. Manders, P. W., & Bader, M. G. (1981). The strength of hybrid glass/carbon fibre composites: Part 1. Failure strain enhancement and failure mode. Journal of Materials Science,16, 2233–2245.10.1007/BF00542386 ↗
14. Marom, G., Fischer, S., Tuler, F. R., & Wagner, H. D. (1978). Hybrid effects in composites: Conditions for positive or negative effects versus rule of mixtures. Journal of Materials Science,13, 1419–1426.10.1007/BF00553194 ↗
15. Miwa, M., & Horiba, N. (1994). Effects of fibre length on tensile strength of carbon/glass fibre hybrid composites. Journal of Materials Science,29, 973–997.10.1007/BF00351419 ↗
16. Nanni, A., Henneke, M. J., & Okamoto, T. (1994). Tensile properties of hybrid rods for concrete reinforcement. Construction and Building Materials,8(1), 27–34.10.1016/0950-0618(94)90005-1 ↗
17. Pan, N., & Postle, R. (1996). Tensile strengths and the hybrid effects of hybrid fibre composites: A probabilistic approach. Transitions of the Royal Society in London, Series A,354, 1875–1897.10.1098/rsta.1996.0082 ↗
18. Phillips, L. N. (1976). The hybrid effect-does it exist? Composites,7, 7–8.10.1016/0010-4361(76)90273-1 ↗