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Crack Width Evaluation of DFRCC Members Reinforced with Braided AFRP Bar
https://orcid.org/https://orcid.org/0000-0002-9850-026X
This study evaluates the crack width in FRP-reinforced DFRCC members and confirms the adaptability of the proposed formula. To achieve these goals, pullout tests followed by uniaxial tension tests were performed on braided aramid FRP (AFRP)-reinforced DFRCC specimens using PVA fibers. The experimental parameters included the cross-sectional area (100 × 100 mm2, 120 × 120 mm2, 140 × 140 mm2) and the fiber volume fraction (0%, 1%, 2%) added to every specimen. First, the pullout test results show that the maximum bond stress increases as the fiber volume fraction increases. The trilinear models are employed for the bond stress–slip relationships to formulate the theoretical calculation of crack width. Finally, the uniaxial tension test results show that crack width increases with increasing fiber volume fraction and decreasing the cross-section of the specimens. The theoretical calculations are compared with the crack width obtained from the uniaxial tension test. In conclusion, most specimens’ theoretical curves showed good adaptability to evaluate crack width from the experiment.
Crack Width Evaluation of DFRCC Members Reinforced with Braided AFRP Bar
https://orcid.org/https://orcid.org/0000-0002-9850-026X
This study evaluates the crack width in FRP-reinforced DFRCC members and confirms the adaptability of the proposed formula. To achieve these goals, pullout tests followed by uniaxial tension tests were performed on braided aramid FRP (AFRP)-reinforced DFRCC specimens using PVA fibers. The experimental parameters included the cross-sectional area (100 × 100 mm2, 120 × 120 mm2, 140 × 140 mm2) and the fiber volume fraction (0%, 1%, 2%) added to every specimen. First, the pullout test results show that the maximum bond stress increases as the fiber volume fraction increases. The trilinear models are employed for the bond stress–slip relationships to formulate the theoretical calculation of crack width. Finally, the uniaxial tension test results show that crack width increases with increasing fiber volume fraction and decreasing the cross-section of the specimens. The theoretical calculations are compared with the crack width obtained from the uniaxial tension test. In conclusion, most specimens’ theoretical curves showed good adaptability to evaluate crack width from the experiment.
Crack Width Evaluation of DFRCC Members Reinforced with Braided AFRP Bar
https://orcid.org/https://orcid.org/0000-0002-9850-026X
This study evaluates the crack width in FRP-reinforced DFRCC members and confirms the adaptability of the proposed formula. To achieve these goals, pullout tests followed by uniaxial tension tests were performed on braided aramid FRP (AFRP)-reinforced DFRCC specimens using PVA fibers. The experimental parameters included the cross-sectional area (100 × 100 mm2, 120 × 120 mm2, 140 × 140 mm2) and the fiber volume fraction (0%, 1%, 2%) added to every specimen. First, the pullout test results show that the maximum bond stress increases as the fiber volume fraction increases. The trilinear models are employed for the bond stress–slip relationships to formulate the theoretical calculation of crack width. Finally, the uniaxial tension test results show that crack width increases with increasing fiber volume fraction and decreasing the cross-section of the specimens. The theoretical calculations are compared with the crack width obtained from the uniaxial tension test. In conclusion, most specimens’ theoretical curves showed good adaptability to evaluate crack width from the experiment.
Crack Width Evaluation of DFRCC Members Reinforced with Braided AFRP Bar
RILEM Bookseries
Kunieda, Minoru (editor) / Kanakubo, Toshiyuki (editor) / Kanda, Tetsushi (editor) / Kobayashi, Koichi (editor) / Takasago, Shugo (author) / Kanakubo, Toshiyuki (author) / Kobayashi, Hiroya (author)
International Conference on Strain-Hardening Cement-Based Composites ; 2022
Strain Hardening Cementitious Composites ; Chapter: 17 ; 156-166
RILEM Bookseries ; 39
2023-02-01
11 pages
Article/Chapter (Book)
Electronic Resource
English
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