Reduction of dissolved oxygen in minimizing corrosion
Concrete structures are susceptible to corrosion especially when exposed to marine environment. In order to minimize the corrosion in reinforced concrete, reduction of dissolved Oxygen (DO) in mixing water is recommended. The DO is the measurement of the amount of free Oxygen that is dissolved in wa...
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| Format: | Article |
| Language: | English |
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Czech Technical University in Prague
2022-03-01
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| Series: | Acta Polytechnica CTU Proceedings |
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| Online Access: | https://ojs.cvut.cz/ojs/index.php/APP/article/view/8045 |
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| author | Mary Grace Ventanilla Jason Ongpeng Nishida Takahiro Keiyu Kawaai |
| author_facet | Mary Grace Ventanilla Jason Ongpeng Nishida Takahiro Keiyu Kawaai |
| author_sort | Mary Grace Ventanilla |
| collection | DOAJ |
| description | Concrete structures are susceptible to corrosion especially when exposed to marine environment. In order to minimize the corrosion in reinforced concrete, reduction of dissolved Oxygen (DO) in mixing water is recommended. The DO is the measurement of the amount of free Oxygen that is dissolved in water which is proportional to the corrosion rate of steel bars inside concrete. In this paper, the use of industrial waste/by-products, agricultural waste, natural minerals, and green inhibitors as additive for cement in reducing the DO level of the mixing water was explored. Candidate materials from different types of agricultural waste, industrial waste, natural minerals, and green inhibitors. The percentage difference of DO were computed for all types of materials as ash or powder or extract in room temperature. This is the percentage difference of DO level in distilled water and the solution mixed with the candidate material having a mass ratio of 3 : 2 and/or 3 : 1. Results showed that more than 90% reduction of DO level were achieved when mixed with ginger extract, ginger powder, aloe vera extract, ginger pulp, and rice hull ash. Future experimental studies using the candidate materials producing reinforced concrete specimens with high reduction of DO level in mixing water is recommended. |
| format | Article |
| id | doaj-art-38b613c1c78f4ac5953cfc2c8d9600d1 |
| institution | Kabale University |
| issn | 2336-5382 |
| language | English |
| publishDate | 2022-03-01 |
| publisher | Czech Technical University in Prague |
| record_format | Article |
| series | Acta Polytechnica CTU Proceedings |
| spelling | doaj-art-38b613c1c78f4ac5953cfc2c8d9600d12025-08-20T03:58:22ZengCzech Technical University in PragueActa Polytechnica CTU Proceedings2336-53822022-03-013362463010.14311/APP.2022.33.06245285Reduction of dissolved oxygen in minimizing corrosionMary Grace Ventanilla0Jason Ongpeng1Nishida Takahiro2Keiyu Kawaai3De La Salle University, Department of Civil Engineering, 2401 Taft Avenue, 0922 Manila, PhilippinesDe La Salle University, Department of Civil Engineering, 2401 Taft Avenue, 0922 Manila, PhilippinesPort and Airport Research Institute, Nagase 3-1-1 Yokosuka-shi, Kanagawa, 239-0826 Japan Ehime University, Bunkyo-Cho 3 Matsuyama-shi Emime, 790-0826 Japan Concrete structures are susceptible to corrosion especially when exposed to marine environment. In order to minimize the corrosion in reinforced concrete, reduction of dissolved Oxygen (DO) in mixing water is recommended. The DO is the measurement of the amount of free Oxygen that is dissolved in water which is proportional to the corrosion rate of steel bars inside concrete. In this paper, the use of industrial waste/by-products, agricultural waste, natural minerals, and green inhibitors as additive for cement in reducing the DO level of the mixing water was explored. Candidate materials from different types of agricultural waste, industrial waste, natural minerals, and green inhibitors. The percentage difference of DO were computed for all types of materials as ash or powder or extract in room temperature. This is the percentage difference of DO level in distilled water and the solution mixed with the candidate material having a mass ratio of 3 : 2 and/or 3 : 1. Results showed that more than 90% reduction of DO level were achieved when mixed with ginger extract, ginger powder, aloe vera extract, ginger pulp, and rice hull ash. Future experimental studies using the candidate materials producing reinforced concrete specimens with high reduction of DO level in mixing water is recommended.https://ojs.cvut.cz/ojs/index.php/APP/article/view/8045corrosiondissolved oxygenwaste |
| spellingShingle | Mary Grace Ventanilla Jason Ongpeng Nishida Takahiro Keiyu Kawaai Reduction of dissolved oxygen in minimizing corrosion Acta Polytechnica CTU Proceedings corrosion dissolved oxygen waste |
| title | Reduction of dissolved oxygen in minimizing corrosion |
| title_full | Reduction of dissolved oxygen in minimizing corrosion |
| title_fullStr | Reduction of dissolved oxygen in minimizing corrosion |
| title_full_unstemmed | Reduction of dissolved oxygen in minimizing corrosion |
| title_short | Reduction of dissolved oxygen in minimizing corrosion |
| title_sort | reduction of dissolved oxygen in minimizing corrosion |
| topic | corrosion dissolved oxygen waste |
| url | https://ojs.cvut.cz/ojs/index.php/APP/article/view/8045 |
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