Proceedings of the 2025 8th International Conference on Traffic Transportation and Civil Architecture (ICTTCA 2025)

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Analysis of Interfacial Bonding Properties of Existing Railway Concrete Bridges Reinforced with Ultra-High Performance Concrete

Authors
Yun Han1, Yuzhe Wu1, Wenshe He2, *, Liangliang He2, Yikai Li2
1China Railway Lanzhou Group Co., Ltd., Lanzhou, 730030, China
2Lanzhou Jiaotong University, Lanzhou, 730070, China
*Corresponding author. Email: 1502231568@qq.com
Corresponding Author
Wenshe He
Available Online 28 July 2025.
DOI
10.2991/978-94-6463-793-9_14How to use a DOI?
Keywords
UHPC; Existing railway concrete bridges; Reinforcement repairs; Interfacial bonding properties
Abstract

The material deterioration of existing railway concrete bridges in the service process is frequent, and it is urgent to strengthen and repair them. Ultra-high performance concrete, as a repair material, has excellent mechanical properties. In this paper, the interfacial bonding properties of ultra-high-performance concrete reinforced existing railway concrete bridge structures are studied. The changes of the bonded strength of the repaired interfacial bond of the composite specimens under different interface treatments were studied by splitting tensile test, and the changes were evaluated and compared. The results show that the bond effect between UHPC and ordinary existing concrete structures is excellent and can be used in the reinforcement and repair work of existing railroad concrete bridges. Before strengthening and repairing, roughening and moistening the interface of existing concrete structures can substantially improve the bond performance of the interface.

Copyright
© 2025 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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Volume Title
Proceedings of the 2025 8th International Conference on Traffic Transportation and Civil Architecture (ICTTCA 2025)
Series
Atlantis Highlights in Engineering
Publication Date
28 July 2025
ISBN
978-94-6463-793-9
ISSN
2589-4943
DOI
10.2991/978-94-6463-793-9_14How to use a DOI?
Copyright
© 2025 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

Cite this article

risenwbib
TY  - CONF
AU  - Yun Han
AU  - Yuzhe Wu
AU  - Wenshe He
AU  - Liangliang He
AU  - Yikai Li
PY  - 2025
DA  - 2025/07/28
TI  - Analysis of Interfacial Bonding Properties of Existing Railway Concrete Bridges Reinforced with Ultra-High Performance Concrete
BT  - Proceedings of the 2025 8th International Conference on Traffic Transportation and Civil Architecture (ICTTCA 2025)
PB  - Atlantis Press
SP  - 143
EP  - 149
SN  - 2589-4943
UR  - https://doi.org/10.2991/978-94-6463-793-9_14
DO  - 10.2991/978-94-6463-793-9_14
ID  - Han2025
ER  -