Corrosion Monitoring of Weathering Steel Bridges by Electrochemical Impedance Method
| Project/Area Number |
20246108
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Material processing/treatments
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| Research Institution | Tokyo Institute of Technology |
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Principal Investigator |
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| Project Period (FY) |
2008 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥22,360,000 (Direct Cost: ¥17,200,000、Indirect Cost: ¥5,160,000)
Fiscal Year 2010: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2009: ¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
Fiscal Year 2008: ¥12,090,000 (Direct Cost: ¥9,300,000、Indirect Cost: ¥2,790,000)
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| Keywords | 大気腐食 / 腐食モニタリング / 耐候性鋼 / 電気化学インピーダンス / 海塩粒子 / 相対湿度 / 橋梁 / 電化化学インピーダンス |
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| Research Abstract |
Corrosion monitoring of weathering steel has been carried out for two years at two different weathering bridges, Naebiki bridge(Niigata) and Ryogoku bridge(Fukuyama) by electrochemical impedance method. Average values of reciprocal of low frequency impedance at 10mHz(1/Z10mHz) well correlate with average corrosion rate obtained by corrosion weight loss measurements. The correlation equation was obtained as follows :(Icorr/μAcm^<-2>)=17. 7×(Z10mHz/Ωcm^2)^<-0. 16>.
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Report
(4 results)
Research Products
(7 results)
