An experimental study on relationship between chloride content in mortar and passivity condition of embedded steel bar

H. Hamada, D. Yamamoto, Y. Sagawa, T. Ikeda

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

抄録

In this study, properties related to corrosion of embedded steel in mortar, which contains chloride around threshold chloride content for steel corrosion, were discussed. Half-cell potential, polarization resistance and polarization curve of embedded steel were measured. Half-cell potential showed a linear relationship with chloride content in mortar. Polarization resistance and grade of passivity judged by polarization curve quickly decreased at the chloride content around 0.3 - 0.4% mass percent versus unit cement mass. This indicates that the destruction of passivity film on steel surface is occurred around this chloride level, which is believed presently to be threshold chloride content for steel corrosion initiation.

本文言語英語
ホスト出版物のタイトルLife-Cycle of Structural Systems
ホスト出版物のサブタイトルDesign, Assessment, Maintenance and Management - Proceedings of the 4th International Symposium on Life-Cycle Civil Engineering, IALCCE 2014
編集者Hitoshi Furuta, Dan M. Frangopol, Mitsuyoshi Akiyama
出版社CRC Press/Balkema
ページ1479-1484
ページ数6
ISBN(印刷版)9781138001206
DOI
出版ステータス出版済み - 2015
イベント4th International Symposium on Life-Cycle Civil Engineering, IALCCE 2014 - Tokyo, 日本
継続期間: 11 16 201411 19 2014

出版物シリーズ

名前Life-Cycle of Structural Systems: Design, Assessment, Maintenance and Management - Proceedings of the 4th International Symposium on Life-Cycle Civil Engineering, IALCCE 2014

その他

その他4th International Symposium on Life-Cycle Civil Engineering, IALCCE 2014
国/地域日本
CityTokyo
Period11/16/1411/19/14

All Science Journal Classification (ASJC) codes

  • 土木構造工学
  • 安全性、リスク、信頼性、品質管理

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