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Tensile Strength of Newly Developed Thermoplastic GFRP Reinforcement Bars
For reinforced concrete structures, most of the commercially available fiber-reinforced polymers (FRP) bars are pultruded using thermosetting resins. One of the practical limitations of the thermosetting-based FRP bars, however, is bending at the construction site. Similar to conventionally steel reinforcement bars, thermoplastic-based FRP bars have an advantage over thermosetting-based FRP bars in that they can be reshaped and bended after the initial production of straight bars. Recently, bendable thermoplastic-based FRP bars have attracted attention as they can simplify the manufacturing and construction process. Essentially, compared to thermosets, thermoplastics are tougher, more deformable, and have greater impact resistance. This study presents the results of an investigation on the mechanical tensile properties of newly developed glass-FRP (GFRP) bars pultruding using thermoplastic resin. The test results illustrate that the newly developed thermoplastic GFRP bars comply with the minimum requirements for the tensile strength of the GFRP bars. In addition, the results of this study reveal that the newly developed thermoplastic GFRP bars could be placed in the same category as high-grade GFRP bars in the different design provisions.
Tensile Strength of Newly Developed Thermoplastic GFRP Reinforcement Bars
For reinforced concrete structures, most of the commercially available fiber-reinforced polymers (FRP) bars are pultruded using thermosetting resins. One of the practical limitations of the thermosetting-based FRP bars, however, is bending at the construction site. Similar to conventionally steel reinforcement bars, thermoplastic-based FRP bars have an advantage over thermosetting-based FRP bars in that they can be reshaped and bended after the initial production of straight bars. Recently, bendable thermoplastic-based FRP bars have attracted attention as they can simplify the manufacturing and construction process. Essentially, compared to thermosets, thermoplastics are tougher, more deformable, and have greater impact resistance. This study presents the results of an investigation on the mechanical tensile properties of newly developed glass-FRP (GFRP) bars pultruding using thermoplastic resin. The test results illustrate that the newly developed thermoplastic GFRP bars comply with the minimum requirements for the tensile strength of the GFRP bars. In addition, the results of this study reveal that the newly developed thermoplastic GFRP bars could be placed in the same category as high-grade GFRP bars in the different design provisions.
Tensile Strength of Newly Developed Thermoplastic GFRP Reinforcement Bars
Lecture Notes in Civil Engineering
Desjardins, Serge (editor) / Poitras, Gérard J. (editor) / El Damatty, Ashraf (editor) / Elshaer, Ahmed (editor) / Almughanni, Mahmoud (author) / Ibrahim, Basil (author) / Mohamed, Hamdy M. (author) / Benmokrane, Brahim (author)
Canadian Society of Civil Engineering Annual Conference ; 2023 ; Moncton, NB, Canada
2024-12-13
8 pages
Article/Chapter (Book)
Electronic Resource
English
Determination of tensile strength of GFRP bars using flexure tests
| Elsevier | 2021
Determination of tensile strength of GFRP bars using flexure tests
| Elsevier | 2022