2015 Fiscal Year Final Research Report
Development of estimation method of chloride ions in concrete surface by non-destructive test
| Project/Area Number |
25420463
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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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 | Hosei University |
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Principal Investigator |
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Keywords | 電磁波 / 表層品質 / 塩化物イオン量 |
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| Outline of Final Research Achievements |
In this study, for the purpose of estimation of chloride ions in the concrete surface using the electromagnetic waves, in order to construct the applicable evaluation system to the existing structures, investigation was carried out on some items which were problems to be solved in the application. As the problems in the application, it is necessary that content of chloride ions is estimated and evaluated at the position of reinforcing bar in order to judge the start of corrosion of reinforcing bar because content of chloride ions which is able to be estimated using electromagnetic waves is the mean value in the cover concrete. As the results of the investigation, while the estimation formula considering with water content and surface roughness of concrete which measurement of the electromagnetic waves was influenced was proposed, the possibility which was possible to estimate the content of chloride ions at the position of reinforcing bar at the good accuracy was found.
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| Free Research Field |
工学
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