Development of the design system of cathodic protection by combination between 3D numerical analysis and electrochemical properties obtained from existing concrete structures
| Project/Area Number |
22560459
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Civil engineering materials/Construction/Construction management
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| Research Institution | Tohoku University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
HISADA Makoto 東北大学, 大学院・工学研究科, 教授 (80238295)
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| Project Period (FY) |
2010 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2012: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2011: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2010: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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| Keywords | 維持管理工学 / 国土保全 / コンクリート / 電気防食 / 電気抵抗率 / 分極抵抗 / 補修 / 防食設計 / 維持管理 |
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| Research Abstract |
It is necessary to evaluate the polarization characteristic of steel bars and the electric resistivity of concrete exactly, in case of estimating an effect of cathodic protection in a design phase by using numerical analysis, such as FEM. Since the accuracy of numerical analysis must depend on the input values. This study developed the measuring methods for these electrochemical properties by non-destructive or small scale destructive procedures. In addition to this, the effects of cathodic protection were estimated by 3D-FEM based on the input values obtained from the measuring methods. As a result of comparing the estimation by 3D-FEM with experimental data of the full-scale specimens which imitated an existing concrete structure, the validity of the measuring method was verified.
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Report
(4 results)
Research Products
(21 results)
