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Investigating the use of electrical capacitance tomography to image rapid transient moisture flow through cracks in concrete

Publication ,  Journal Article
Dalton, LE; Räsänen, M; Voss, A; Seppänen, A; Pourghaz, M
Published in: Cement and Concrete Composites
July 1, 2023

In this paper, we investigate the feasibility of electrical capacitance tomography (ECT) to image rapid three-dimensional (3D) moisture transport in damaged portland cement mortar and concrete. ECT is a tomography method that uses inter-electrode capacitance measurements to reconstruct the internal 3D distribution of the electrical permittivity which carries contrast with respect to moisture content. In the experimental study, ECT measurements were performed with a reservoir placed directly on the crack in each specimen to promote rapid moisture transport to test the high temporal resolution capabilities. An electrode array connected to an electrical tomography device was used to conduct moisture transport measurements in cracked specimens at a temporal resolution as high as 0.7 s. The results of this study illustrate that ECT can be used to detect rapid moisture transport through various crack patterns and capture the flow path of water around coarse aggregates with potential use for field monitoring.

Duke Scholars

Published In

Cement and Concrete Composites

DOI

ISSN

0958-9465

Publication Date

July 1, 2023

Volume

140

Related Subject Headings

  • Building & Construction
  • 4016 Materials engineering
  • 4005 Civil engineering
  • 3302 Building
  • 1202 Building
  • 0905 Civil Engineering
  • 0904 Chemical Engineering
 

Citation

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ICMJE
MLA
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Dalton, L. E., Räsänen, M., Voss, A., Seppänen, A., & Pourghaz, M. (2023). Investigating the use of electrical capacitance tomography to image rapid transient moisture flow through cracks in concrete. Cement and Concrete Composites, 140. https://doi.org/10.1016/j.cemconcomp.2023.105070
Dalton, L. E., M. Räsänen, A. Voss, A. Seppänen, and M. Pourghaz. “Investigating the use of electrical capacitance tomography to image rapid transient moisture flow through cracks in concrete.” Cement and Concrete Composites 140 (July 1, 2023). https://doi.org/10.1016/j.cemconcomp.2023.105070.
Dalton LE, Räsänen M, Voss A, Seppänen A, Pourghaz M. Investigating the use of electrical capacitance tomography to image rapid transient moisture flow through cracks in concrete. Cement and Concrete Composites. 2023 Jul 1;140.
Dalton, L. E., et al. “Investigating the use of electrical capacitance tomography to image rapid transient moisture flow through cracks in concrete.” Cement and Concrete Composites, vol. 140, July 2023. Scopus, doi:10.1016/j.cemconcomp.2023.105070.
Dalton LE, Räsänen M, Voss A, Seppänen A, Pourghaz M. Investigating the use of electrical capacitance tomography to image rapid transient moisture flow through cracks in concrete. Cement and Concrete Composites. 2023 Jul 1;140.
Journal cover image

Published In

Cement and Concrete Composites

DOI

ISSN

0958-9465

Publication Date

July 1, 2023

Volume

140

Related Subject Headings

  • Building & Construction
  • 4016 Materials engineering
  • 4005 Civil engineering
  • 3302 Building
  • 1202 Building
  • 0905 Civil Engineering
  • 0904 Chemical Engineering