Green corrosion inhibition of Punica granatum peel powder on TMT in salt medium: outlooks from experiments and artificial neural networks
Corrosion of TMT bars in reinforced concrete structures poses a significant concern for civil engineers, particularly in marine environments. Utilizing green inhibitors can offer a sustainable solution to this persistent issue. Punica granatum peel powder as an inhibitor for TMT bars in 3.5% NaCl is...
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| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Taylor & Francis Group
2025-12-01
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| Series: | Green Chemistry Letters and Reviews |
| Subjects: | |
| Online Access: | https://www.tandfonline.com/doi/10.1080/17518253.2025.2525117 |
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| Summary: | Corrosion of TMT bars in reinforced concrete structures poses a significant concern for civil engineers, particularly in marine environments. Utilizing green inhibitors can offer a sustainable solution to this persistent issue. Punica granatum peel powder as an inhibitor for TMT bars in 3.5% NaCl is an alternative to the toxic conventional inhibitors. HPLC identified the potential organic compounds responsible for its corrosion inhibition. The effectiveness of the inhibitor with an 8 mm diameter TMT was assessed using weight loss and electrochemical tests at five different concentrations, ranging from 3.5 to 17.5 g. The weight loss test achieved a maximum inhibition efficiency of 83.11% after a 7-day exposure. FTIR and UV-Vis verified the steel-inhibitor interaction and confirmed a protective sheath on the steel surface through chemisorption. Improved metal surface in the presence of peel powder is validated with FE-SEM, AFM, and contact angle tests. ANN predicted the weight loss results through a perfect model with R² of 0.9988928 (training) and 0.9985999 (validation). The application of peel powder on TMT, along with corrosion studies and ANN, has not yet been investigated by researchers. This approach presents promising prospects for mitigating corrosion in reinforced concrete structures without compromising structural integrity and longevity. |
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| ISSN: | 1751-8253 1751-7192 |