Development of preventing corrosion progress method for unpainted weathering steel with severe corrosion damages

• Project/Area Number: 26630213
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Structural engineering/Earthquake engineering/Maintenance management engineering
• Research Institution: Kyushu University
• Principal Investigator: Kainuma Shigenobu 九州大学, 工学研究院, 准教授 (00262874)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Project Status: Completed (Fiscal Year 2016)
• Budget Amount: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000); Fiscal Year 2016: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2015: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2014: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
• Keywords: 構造工学 / 地震工学 / 維持管理工学 / 鋼構造物 / 耐候性鋼 / 防食 / 犠牲陽極板 / 繊維シート / 犠牲陽極

Outline of Final Research Achievements

In this study, to develop a preventing corrosion progress method for unpainted weathering steel with sever corrosion damages, material characteristics of casting Al-Zn alloy plate as a sacrificial anode and fiber sheet which has functions of continual water absorption and retention were clarified. In addition, the applicability was also investigated by applying the method to an I-section steel girder bridge of which paint coating has deteriorated and disappeared.

Research Products

• [Journal Article] Al-Zn陽極材と吸水・保水繊維シートを用いた鋼部材の大気犠牲陽極防食技術に関する研究 (2017)
  • Author(s): 貝沼重信，土橋洋平，石原修二，内田大介，兼子彬，山内孝郎
  • Journal Title: 土木学会論文集A Volume: -
  • NAID: 130006903652
  • Peer Reviewed
• [Journal Article] Study on Anti-Corrosive Method with Sacrificial Anode for Embedded Steel Members using Water Swelling Rubber (2017)
  • Author(s): M. YANG, S. KAINUMA, T. TOMODA, K. MINAMI
  • Journal Title: 9th International Symposium on Steel Structures, Jeju, Korea Volume: 印刷中
  • Peer Reviewed
• [Journal Article] Al-Mg合金溶射/Znめっき，Zn溶射のガルバニック腐食特性に関する電気化学的検討 (2016)
  • Author(s): 藤本拓史，貝沼重信，宮田弘和
  • Journal Title: 土木構造・材料論文集 Volume: 第32号 Pages: 55-62
  • NAID: 40021151563
  • Peer Reviewed
• [Journal Article] 高腐食性環境における無塗装耐候性鋼上路トラス橋における腐食損傷の要因推定と腐食性評価（その3）－部位レベルの腐食環境と腐食性の評価－ (2016)
  • Author(s): 貝沼重信，道野正嗣，山本悠哉，藤岡靖，藁科彰，高木真一郎，仲健一
  • Journal Title: 日本防錆技術協会 防錆管理 Volume: Vol.60 No.9 Pages: 338-346
  • NAID: 40020941467
  • Peer Reviewed
• [Journal Article] Al-Zn合金鋳造板と繊維シートを用いた鋼部材の大気犠牲陽極防食技術に関する基礎的研究 (2016)
  • Author(s): 貝沼重信，土橋洋平，石原修二，内田大介，兼子彬，山内孝郎
  • Journal Title: 腐食防食学会 材料と環境 Volume: Vol.65 No.9 Pages: 298-305
  • NAID: 130005403787
  • Peer Reviewed
• [Journal Article] 高腐食性環境における無塗装耐候性鋼上路トラス橋における腐食損傷の要因推定と腐食性評価（その2）－腐食環境評価と腐食要因分析－ (2016)
  • Author(s): 貝沼重信，道野正嗣，山本悠哉，藤岡靖，藁科彰，高木真一郎，仲健一
  • Journal Title: 日本防錆技術協会 防錆管理 Volume: Vol.60 No.8 Pages: 298-305
  • NAID: 40020922462
  • Peer Reviewed
• [Journal Article] 高腐食性環境における無塗装耐候性鋼上路トラス橋における腐食損傷の要因推定と腐食性評価（その1）―腐食損傷の調査― (2016)
  • Author(s): 藤岡靖，藁科彰，高木真一郎，仲健 一，貝沼重信，道野正嗣，山本悠哉
  • Journal Title: 日本防錆技術協会 防錆管理 Volume: Vol.60 No.7 Pages: 264-272
  • NAID: 40020899278
  • Peer Reviewed
• [Journal Article] 多孔質Al-Zn焼結板と保水性繊維シートを用いた高耐久性大気腐食環境センサに関する基礎的研究 (2014)
  • Author(s): 石原修二，貝沼重信，内田大介，兼子彬，山内孝郎
  • Journal Title: 鋼構造年次論文報告集 Volume: Vol.22 Pages: 477-481
  • Peer Reviewed
• [Journal Article] 多孔質焼結板と繊維シートを用いた腐食鋼部材の大気犠牲陽極防食効果に関する基礎的研究 (2014)
  • Author(s): 石原修二，貝沼重信，木下優，内田大介，兼子彬，山内孝郎
  • Journal Title: 材料と環境 Volume: Vol.63, No.12 Pages: 609-615
  • NAID: 130005077628
  • Peer Reviewed
• [Presentation] Al-Zn陽極材と繊維シートを用いた大気犠牲陽極防食技術の鋼構造物への適用性に関する検討 (2017)
  • Author(s): 藤本 拓史，貝沼 重信，石原 修二，兼子 彬
  • Organizer: 平成２８年度 西部支部研究発表会
  • Place of Presentation: 佐賀大学
• [Presentation] Corrosion Protection Effect with Scrificial Anode for Corroded Stel Members Using Al-Zn Alloy Casting Materials and Fiber Sheet (2015)
  • Author(s): Y. TSUCHIHASHI, S.KAINUMA, Y. S. JEONG, S. ISHIHARA, D. UCHIDA, A. KANEKO, T. YAMAUCHI
  • Organizer: The 2015 International Conference on Innovative in Structural Engineering and Mechanics
  • Place of Presentation: Inchon, Korea
  • Year and Date: 2015-08-25
  • Int'l Joint Research
• [Presentation] Al-Zn合金鋳造材と繊維シートを用いた腐食鋼部材の大気犠牲陽極防食に関する基礎的研究 (2015)
  • Author(s): 藤本拓史，貝沼重信，石原修二，内田大介，兼子彬，山内孝郎
  • Organizer: 材料と環境2015
  • Place of Presentation: 東京電機大学：千住キャンパス１号館
  • Year and Date: 2015-05-18
• [Presentation] Al-Zn 合金鋳造材と繊維シートを用いた腐食鋼部材の大気犠牲陽極防食効果に関する基礎的研究 (2014)
  • Author(s): 土橋洋平，貝沼重信，石原修二，内田大介，兼子彬，山内孝郎
  • Organizer: 第61回材料と環境討論会
  • Place of Presentation: 米子市ビックシップ（米子コンベンションセンター）
  • Year and Date: 2014-11-26 – 2014-11-28
• [Presentation] Fundamental Study on Corrosion Protection of Steel Members with a Porous Sintered Al-Zn Plate and Fiber Sheet under the Atmospheric Environment (2014)
  • Author(s): S.ISHIHARA, S.KAINUMA, D.UCHIDA, A.KANEKO, T.YAMAUCHI
  • Organizer: 19th International Corrosion Congress
  • Place of Presentation: Jeju, Korea
  • Year and Date: 2014-11-02 – 2014-11-06