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Electrical Conductivity and Chloride Ingress in Hardened Cement Paste

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タイトル: Electrical Conductivity and Chloride Ingress in Hardened Cement Paste
著者: Kurumisawa, Kiyofumi 著作を一覧する
Nawa, Toyoharu 著作を一覧する
発行日: 2016年 3月
出版者: Japan Concrete Institute
誌名: Journal of advanced concrete technology
巻: 14
号: 3
開始ページ: 87
終了ページ: 94
出版社 DOI: 10.3151/jact.14.87
抄録: The transport properties of hardened cement paste (HCP) have been investigated in many studies; the AC impedance method (ACI) is a non-destructive technique employed for this purpose and has been used in investigations of the electrical characteristic and mass transport properties of HCP. However, there are relatively fewer studies investigating chloride ingress in HCP and using the ACI. In this study, the relationship between the electrical conductivity measured by the ACI and chloride ingress was investigated. Backscattered electron image analysis and mercury intrusion porosimetry and water porosity were used to measure the pore structure of HCP, and the chloride ingress depth was measured by an electron probe microanalyzer. There was a high correlation between the porosity and conductivity and between the conductivity and diffusion coefficient of the chloride ions in HCP. This implies that the diffusion coefficient of chloride ions could be estimated by the conductivity measurements.
資料タイプ: article
出現コレクション:雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

提供者: 胡桃澤 清文


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