Effect of exposure environment and period on chloride diffusion in concrete with inhibitor

Toru Yamaji, Yoshikazu Akira, Hidenori Hamada

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

抄録

The surface chloride ion concentration (C0) and apparent diffusion coefficient (Dcip) arc very important parameters on estimating the deterioration of RC structures in marine environments. In this study, concrete specimens with an inhibitor were exposed to different marine environments for 1, 3, and 5 years. These encompasscd both tidal and splash environments at three ports in Japan. C0 and Dap were obtained from the chloride ion profiles in concrete. Saturation rates of concrete were also tested. Using the long-term exposure test results, the effects of the exposure environments and periods on C0 and Dap were studied. The results are shown below: 1) Co did not increase between 3 and 5 years in a large number of cases. These specimens tended to show a high saturation rate. A high saturation rate was considered to lead to almost no change in C0 over time. 2) Dap in the tidal environment was slightly larger than in the splash environment. This was considered to be due to the higher saturation rate of concrcte in the tidal than splash environment.

本文言語英語
ホスト出版物のタイトルAdvances in Concrete Structural Durability - Proceedings of the 2nd International Conference on Durability of Concrete Structures, ICDCS 2010
出版社Hokkaido University Press
ページ311-319
ページ数9
ISBN(印刷版)9784832903609
出版ステータス出版済み - 2010
イベント2nd International Conference on Durability of Concrete Structures, ICDCS 2010 - Sapporo, 日本
継続期間: 11 24 201011 26 2010

出版物シリーズ

名前Advances in Concrete Structural Durability - Proceedings of the 2nd International Conference on Durability of Concrete Structures, ICDCS 2010

その他

その他2nd International Conference on Durability of Concrete Structures, ICDCS 2010
国/地域日本
CitySapporo
Period11/24/1011/26/10

All Science Journal Classification (ASJC) codes

  • 土木構造工学
  • 海洋工学
  • 建築および建設

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