Experimental study on the bonding performance of stainless-steel reinforcement and seawater-sea sand concrete under simulated marine environment
To study the bonding performance (BP) of stainless-steel reinforcement (SSR) and seawater-sea sand concrete (SSC) before and after corrosion, 12 groups of stainless-steel reinforcement and seawater-sea sand concrete (SSR-SSC) center-drawing specimens and 1 group of HRB500 carbon steel seawater-sea s...
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| Language: | English |
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Elsevier
2025-12-01
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| Series: | Case Studies in Construction Materials |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214509525008137 |
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| author | Ran Li Ruirui Zhang Baofeng Zheng Zhongzheng Guan Haiyun Li |
| author_facet | Ran Li Ruirui Zhang Baofeng Zheng Zhongzheng Guan Haiyun Li |
| author_sort | Ran Li |
| collection | DOAJ |
| description | To study the bonding performance (BP) of stainless-steel reinforcement (SSR) and seawater-sea sand concrete (SSC) before and after corrosion, 12 groups of stainless-steel reinforcement and seawater-sea sand concrete (SSR-SSC) center-drawing specimens and 1 group of HRB500 carbon steel seawater-sea sand concrete (CS-SSC) specimens were designed and fabricated to perform accelerated corrosion and center drawing tests, and each group contained 3 samples, totaling 39 samples. The damage mode of the specimens after corrosion was dominated by splitting failure (SF), while pull-out failure (PF) and pull-out-splitting failure (PSF) also occurred in some specimens during the tests. The analysis results reveal that the voids of the concrete specimens were filled by the corrosion products. The increase of the corrosion temperature resulted in the accumulation of more corrosion products, which induced the additional microcracking in the concrete specimens. This microcracking progressively reduced the ultrasonic velocity. It was also found that a larger relative thickness of the concrete cover can improve how effectively the concrete restrains the reinforcement, with the improvement reaching as high as 71.74 %. Furthermore, the ultimate pull-out load of the specimens was found to improve by increasing the relative anchorage length within a specific range, achieving a peak increase of 43.95 %. However, as the contact area between the steel bar and the concrete increased, the bond stress decreased, with a maximum reduction of 53.51 %. Based on the test results, a formula for the calculation of the bond strength of SSR-SSC is proposed, and its high accuracy is verified by the results of a comparative analysis. |
| format | Article |
| id | doaj-art-c73612e72ba34c60bc3bb92c27d0d393 |
| institution | Kabale University |
| issn | 2214-5095 |
| language | English |
| publishDate | 2025-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Construction Materials |
| spelling | doaj-art-c73612e72ba34c60bc3bb92c27d0d3932025-08-20T03:28:22ZengElsevierCase Studies in Construction Materials2214-50952025-12-0123e0501510.1016/j.cscm.2025.e05015Experimental study on the bonding performance of stainless-steel reinforcement and seawater-sea sand concrete under simulated marine environmentRan Li0Ruirui Zhang1Baofeng Zheng2Zhongzheng Guan3Haiyun Li4Key Laboratory of Roads and Railway Engineering Safety Control (Shijiazhuang Tiedao University), Ministry of Education, Shijiazhuang, China; School of Civil Engineering, Shijiazhuang Tiedao University, Shijiazhuang, China; Hebei Engineering Innovation Center for Traffic Emergency and Guarantee, Shijiazhuang 050043, China; Corresponding author at: Key Laboratory of Roads and Railway Engineering Safety Control (Shijiazhuang Tiedao University), Ministry of Education, Shijiazhuang, China.School of Civil Engineering, Shijiazhuang Tiedao University, Shijiazhuang, ChinaSchool of Civil Engineering, Southeast University, Nanjing, ChinaKey Laboratory of Roads and Railway Engineering Safety Control (Shijiazhuang Tiedao University), Ministry of Education, Shijiazhuang, China; School of Civil Engineering, Shijiazhuang Tiedao University, Shijiazhuang, ChinaKey Laboratory of Roads and Railway Engineering Safety Control (Shijiazhuang Tiedao University), Ministry of Education, Shijiazhuang, China; School of Civil Engineering, Shijiazhuang Tiedao University, Shijiazhuang, ChinaTo study the bonding performance (BP) of stainless-steel reinforcement (SSR) and seawater-sea sand concrete (SSC) before and after corrosion, 12 groups of stainless-steel reinforcement and seawater-sea sand concrete (SSR-SSC) center-drawing specimens and 1 group of HRB500 carbon steel seawater-sea sand concrete (CS-SSC) specimens were designed and fabricated to perform accelerated corrosion and center drawing tests, and each group contained 3 samples, totaling 39 samples. The damage mode of the specimens after corrosion was dominated by splitting failure (SF), while pull-out failure (PF) and pull-out-splitting failure (PSF) also occurred in some specimens during the tests. The analysis results reveal that the voids of the concrete specimens were filled by the corrosion products. The increase of the corrosion temperature resulted in the accumulation of more corrosion products, which induced the additional microcracking in the concrete specimens. This microcracking progressively reduced the ultrasonic velocity. It was also found that a larger relative thickness of the concrete cover can improve how effectively the concrete restrains the reinforcement, with the improvement reaching as high as 71.74 %. Furthermore, the ultimate pull-out load of the specimens was found to improve by increasing the relative anchorage length within a specific range, achieving a peak increase of 43.95 %. However, as the contact area between the steel bar and the concrete increased, the bond stress decreased, with a maximum reduction of 53.51 %. Based on the test results, a formula for the calculation of the bond strength of SSR-SSC is proposed, and its high accuracy is verified by the results of a comparative analysis.http://www.sciencedirect.com/science/article/pii/S2214509525008137Marine environmentStainless-steel reinforcementSeawater-sea sand concreteUltrasonic detectionX-ray DiffractionScanning electron microscope |
| spellingShingle | Ran Li Ruirui Zhang Baofeng Zheng Zhongzheng Guan Haiyun Li Experimental study on the bonding performance of stainless-steel reinforcement and seawater-sea sand concrete under simulated marine environment Case Studies in Construction Materials Marine environment Stainless-steel reinforcement Seawater-sea sand concrete Ultrasonic detection X-ray Diffraction Scanning electron microscope |
| title | Experimental study on the bonding performance of stainless-steel reinforcement and seawater-sea sand concrete under simulated marine environment |
| title_full | Experimental study on the bonding performance of stainless-steel reinforcement and seawater-sea sand concrete under simulated marine environment |
| title_fullStr | Experimental study on the bonding performance of stainless-steel reinforcement and seawater-sea sand concrete under simulated marine environment |
| title_full_unstemmed | Experimental study on the bonding performance of stainless-steel reinforcement and seawater-sea sand concrete under simulated marine environment |
| title_short | Experimental study on the bonding performance of stainless-steel reinforcement and seawater-sea sand concrete under simulated marine environment |
| title_sort | experimental study on the bonding performance of stainless steel reinforcement and seawater sea sand concrete under simulated marine environment |
| topic | Marine environment Stainless-steel reinforcement Seawater-sea sand concrete Ultrasonic detection X-ray Diffraction Scanning electron microscope |
| url | http://www.sciencedirect.com/science/article/pii/S2214509525008137 |
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