| Project/Area Number |
23760402
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Civil engineering materials/Construction/Construction management
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| Research Institution | Hirosaki University |
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Principal Investigator |
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| Project Period (FY) |
2011 – 2012
|
| Project Status |
Completed (Fiscal Year 2012)
|
| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2012: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2011: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
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| Keywords | コンクリート / 連続繊維シート / 塩害 / 鉄筋腐食 / 断面修復 / 補修 / 補強 / 再劣化 |
|---|
| Research Abstract |
We studied how to get reasonably strengthening effect for reinforced concrete beam which deteriorated by rebar corrosion by strengthening with a continuous fiber sheet. As a result, the corrosion mass loss ratio of the longitudinal bars is at about10% or less, even if the continuous fiber sheet without repair of the host metal, indicating the possibility that an adequate structural performance recovery can be expected. Meanwhile, the corrosion amount of longitudinal bars becomes more than 30%, it wasfound that do not have a sufficient strengthening effect without repair of the host material such as the patch repair.
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