Proceedings of the 2023 5th International Conference on Civil Engineering, Environment Resources and Energy Materials (CCESEM 2023)

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Bonding properties of Sikadur-30 for CFRP-strengthened steel structures

Authors
Luyang Qi1, *, Jiayi He2
1Logistics Center of Yantai MSA, Yantai, China
2Hubei University of Technology, Wuhan, China
*Corresponding author. Email: 568600376@qq.com
Corresponding Author
Luyang Qi
Available Online 14 December 2023.
DOI
10.2991/978-94-6463-316-0_17How to use a DOI?
Keywords
Structural adhesive; thermogravimetric analysis; dynamic mechanical analysis; bond strength
Abstract

There is increasing demand for strengthening ageing steel structures, and bonded carbon fiber reinforced polymer (CFRP) plates strengthening is becoming more widely used. The technique can be advantageous compared to traditional welded steel plate methods, due to its ease of installation, a high strength-to-weight ratio and resistance to corrosion. This study focuses on the evaluation of a commonly used structural epoxy adhesive, Sikadur-30, for strengthening steel structures with externally bonded CFRP plates. Several key properties of the adhesive were investigated, including its thermogravimetric relationship curve, glass transition temperature, and bond strength. The thermogravimetric analysis (TGA) revealed that the adhesive retained more than 95% of its quality up to 200 °C, indicating its suitability for civil engineering applications. The dynamic mechanical analysis (DMA) showed that the glass transition temperature of the examined adhesive was 80.47 °C, which suggests that the operating temperature for CFRP-reinforced steel structures should be lower than 60.47 °C. The final lap-shear joint test demonstrated that the adhesive had a bond strength of 23.58 MPa. Overall, the adhesive exhibited appropriate thermal stability and bond strength for externally bonded CFRP strengthening application.

Copyright
© 2023 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 2023 5th International Conference on Civil Engineering, Environment Resources and Energy Materials (CCESEM 2023)
Series
Advances in Engineering Research
Publication Date
14 December 2023
ISBN
978-94-6463-316-0
ISSN
2352-5401
DOI
10.2991/978-94-6463-316-0_17How to use a DOI?
Copyright
© 2023 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  - Luyang Qi
AU  - Jiayi He
PY  - 2023
DA  - 2023/12/14
TI  - Bonding properties of Sikadur-30 for CFRP-strengthened steel structures
BT  - Proceedings of the 2023 5th International Conference on Civil Engineering, Environment Resources and Energy Materials (CCESEM 2023)
PB  - Atlantis Press
SP  - 148
EP  - 153
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-316-0_17
DO  - 10.2991/978-94-6463-316-0_17
ID  - Qi2023
ER  -