Electrical Conductivity and Chloride Ingress in Hardened Cement Paste

• Kurumisawa Kiyofumi

  Division of Sustainable Resources Engineering, Faculty of Engineering, Hokkaido University , Sapporo, Japan.

• Nawa Toyoharu

  Division of Sustainable Resources Engineering, Faculty of Engineering, Hokkaido University , Sapporo, Japan.

Bibliographic Information

Other Title

• Electric conductivity and chloride ingress in hardened cement paste

Abstract

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 elec-trical 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.

Journal

• Journal of Advanced Concrete Technology

  Journal of Advanced Concrete Technology 14 (3), 87-94, 2016-03-10

  Japan Concrete Institute

Keywords

• General Materials Science
• Building and Construction

Details

• CRID: 1390282680195362176
• NII Article ID: 130005132843
• DOI: 10.3151/jact.14.87
• ISSN: 13473913
• ISSN: 13468014
• HANDLE: 2115/63011
• Web Site: https://www.jstage.jst.go.jp/article/jact/14/3/14_87/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • IRDB
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed