Rehabilitation of reinforced concrete slab using ultra high-performance concrete and fiber reinforced polymer
Email:
quannh_ktxd@utc.edu.vn
Từ khóa:
Ultra-High-Performance Concrete, four-point flexural test, flexural behavior
Tóm tắt
Rehabilitation the flexural capacity of reinforced concrete structures has been the subject of many studies. However, there is currently limited research on repairing such structures using Ultra-High-Performance Concrete (UHPC) and the combination of UHPC with Fiber-Reinforced Polymer (FRP) materials. This article presents the results of an experimental study on the flexural behavior of 4 specimens: 1 specimen of reinforced concrete (RC), 1 specimen strengthened with FRP sheets, and 02 specimens with the same height as the RC specimen but with a replacement of 3 cm of the protective concrete layer with a UHPC layer, either bonded or not bonded to the existing concrete, with or without the reinforcement of FRP sheets. The experimental results of the 4-point bending tests indicate that, while maintaining the height of the RC specimen constant, replacing the protective concrete layer with a UHPC layer and incorporating FRP in the tension zone led to an increase of approximately 83.35% in flexural capacity, with the deflection at the failure stage rising by only 12.8%. This research opens up a new and promising direction for improving and extending the service life of RC bridges using UHPC and FRPTài liệu tham khảo
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[4] G. Rafic, Z.B.H. El-Helou, A.G. Benjamin, Mechanical Behavior and Design Properties of Ultra-High- Performance Concrete (Open Source), ACI Materials Journal, 119 (2022) 181-194. https://doi.org/10.14359/51734194
[5] E. Brühwiler, UHPFRC technology to enhance the performance of existing concrete bridges, Structure and Infrastructure Engineering, 16 (2020) 94-105. https://doi.org/10.1080/15732479.2019.1605395
[6] Z. Haber, F. Andrew, M. Michel, O. Justin, Z. Kevin, G. Benjamin, Design and Construction of UHPC-Based Bridge Preservation and Repair Solutions, Federal highway administration, (2022). https://doi.org/10.21949/1521867
[7] V.H. Hoang, Experimental Study on Flexual Behavior of Reinforced Concrete Slabs strengthened Ultra-High-Performance-Concrete, Transport and Communications Science Journal, 74 (2023) 1100-1109. https://doi.org/10.47869/tcsj.74.9.7
[8] L. Liu, S. Wan, Flexural bearing capacity of reinforced concrete beams reinforced with carbon fiber reinforced plastics strips and ultra-high performance concrete layers, International Journal of Building Pathology and Adaptation, (2022). https://doi.org/10.1108/IJBPA-04-2022-0056
[9] M.A. El-Mandouh, G. Elsamak, B.O. Rageh, A. Hamoda, F. Abdelazeem, Experimental and numerical investigation of one-way reinforced concrete slabs using various strengthening systems, Case Studies in Construction Materials, 18 (2023) e01691. https://doi.org/10.1016/j.cscm.2022.e01691
[10] E.M.A. Abbas, Y. Ge, Z. Zhang, Y. Chen, A. Ashour, W. Ge, R. Tang, Z. Yang, E.Y. Khailah, S. Yao, C. Sun, Flexural behavior of UHPC beam reinforced with steel-FRP composite bars, Case Studies in Construction Materials, 16 (2022) e01110. https://doi.org/10.1016/j.cscm.2022.e01110
[11] V.H. Hoang, T.A. Do, A.T. Tran, X.H. Nguyen, Flexural capacity of reinforced concrete slabs retrofitted with ultra-high-performance concrete and fiber-reinforced polymer, Innovative Infrastructure Solution, 9 113 (2024). https://doi.org/10.1007/s41062-024-01410-y
[12] ACI.440.2R-17, Guide for the Design and Construction of Externally Bonded FRP Systems for Strengthening Concrete Structures, Reported by ACI Committee 440, 2017.
[2] Z. Dong, Z. Liu, J. Ji, H. Zhu, X. Shao, G. Wu, Z. Yang, Flexural behavior of small-sized I-shaped UHPC beams hybrid reinforced with steel plate and BFRP, Composite Structures, 306 (2023) 116595. https://doi.org/10.1016/j.compstruct.2022.116595
[3] V.H. Hoang, Experimental and Modeling of tensile behavior of Ultra High Performance Concrete, Transport and Communications Science Journal, 74 (2023) 709-717. https://doi.org/10.47869/tcsj.74.6.2
[4] G. Rafic, Z.B.H. El-Helou, A.G. Benjamin, Mechanical Behavior and Design Properties of Ultra-High- Performance Concrete (Open Source), ACI Materials Journal, 119 (2022) 181-194. https://doi.org/10.14359/51734194
[5] E. Brühwiler, UHPFRC technology to enhance the performance of existing concrete bridges, Structure and Infrastructure Engineering, 16 (2020) 94-105. https://doi.org/10.1080/15732479.2019.1605395
[6] Z. Haber, F. Andrew, M. Michel, O. Justin, Z. Kevin, G. Benjamin, Design and Construction of UHPC-Based Bridge Preservation and Repair Solutions, Federal highway administration, (2022). https://doi.org/10.21949/1521867
[7] V.H. Hoang, Experimental Study on Flexual Behavior of Reinforced Concrete Slabs strengthened Ultra-High-Performance-Concrete, Transport and Communications Science Journal, 74 (2023) 1100-1109. https://doi.org/10.47869/tcsj.74.9.7
[8] L. Liu, S. Wan, Flexural bearing capacity of reinforced concrete beams reinforced with carbon fiber reinforced plastics strips and ultra-high performance concrete layers, International Journal of Building Pathology and Adaptation, (2022). https://doi.org/10.1108/IJBPA-04-2022-0056
[9] M.A. El-Mandouh, G. Elsamak, B.O. Rageh, A. Hamoda, F. Abdelazeem, Experimental and numerical investigation of one-way reinforced concrete slabs using various strengthening systems, Case Studies in Construction Materials, 18 (2023) e01691. https://doi.org/10.1016/j.cscm.2022.e01691
[10] E.M.A. Abbas, Y. Ge, Z. Zhang, Y. Chen, A. Ashour, W. Ge, R. Tang, Z. Yang, E.Y. Khailah, S. Yao, C. Sun, Flexural behavior of UHPC beam reinforced with steel-FRP composite bars, Case Studies in Construction Materials, 16 (2022) e01110. https://doi.org/10.1016/j.cscm.2022.e01110
[11] V.H. Hoang, T.A. Do, A.T. Tran, X.H. Nguyen, Flexural capacity of reinforced concrete slabs retrofitted with ultra-high-performance concrete and fiber-reinforced polymer, Innovative Infrastructure Solution, 9 113 (2024). https://doi.org/10.1007/s41062-024-01410-y
[12] ACI.440.2R-17, Guide for the Design and Construction of Externally Bonded FRP Systems for Strengthening Concrete Structures, Reported by ACI Committee 440, 2017.
Tải xuống
Chưa có dữ liệu thống kê
Nhận bài
31/01/2024
Nhận bài sửa
01/05/2024
Chấp nhận đăng
08/05/2024
Xuất bản
15/05/2024
Chuyên mục
Công trình khoa học
Kiểu trích dẫn
Hoang Viet, H., & Nguyen Hoang, Q. (1715706000). Rehabilitation of reinforced concrete slab using ultra high-performance concrete and fiber reinforced polymer . Tạp Chí Khoa Học Giao Thông Vận Tải, 75(4), 1518-1528. https://doi.org/10.47869/tcsj.75.4.4
