Prediction of Chloride Ion Penetration into Unsaturated Concrete Based on Evaluation of Electrochemical Properties
| Project/Area Number |
26709031
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| Research Category |
Grant-in-Aid for Young Scientists (A)
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| Allocation Type | Partial Multi-year Fund |
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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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| Project Period (FY) |
2014-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥14,690,000 (Direct Cost: ¥11,300,000、Indirect Cost: ¥3,390,000)
Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2016: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2015: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2014: ¥9,620,000 (Direct Cost: ¥7,400,000、Indirect Cost: ¥2,220,000)
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| Keywords | 劣化予測 / 塩害 / 電気化学的手法 / 電気抵抗率 / 塩化物イオン拡散係数 / 含水率 / 不飽和コンクリート / 非破壊試験 / 電位分布 / インフラマネジメント / コンクリート / 電気化学的特性 / 移流拡散方程式 / 浸潤速度 |
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| Outline of Final Research Achievements |
In order to construct a prediction method of chloride ion permeation for unsaturated concrete based on the electrical properties of concrete obtained by some electrochemical nondestructive tests, this study stacked and summarized the basic knowledge - namely, (1) the relationship between apparent diffusion coefficient and electric resistance of unsaturated cement paste, (2) the relationship between apparent diffusion coefficient of chloride ion of concrete immersed in seawater for a long time and diffusion coefficient estimated from electric resistivity, (3) the development of nondestructive evaluation test of moisture content distribution in concrete.
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Report
(5 results)
Research Products
(9 results)
