The Influence of Multiple Micro-cracking on the Electrical Impedance of an Engineered Cementitious Composite

Danah Saraireh, Steve Walls, Benny Suryanto, Gerard Starrs, William John McCarter

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The mechanical and electrical properties of an Engineered Cementitious Composite(ECC) while under tensile loading are presented. Direct tensile tests were conductedon dog-bone shaped ECC samples, with simultaneous mechanical and electricalmeasurements taken during the loading process. Regarding electrical propertymeasurements, these were recorded at 13 spot frequencies over the frequency range100Hz-1MHz. When presented in Nyquist format, the ECC displayed the typicalimpedance response comprising a spur at the low-frequency side of the curve and asemi-circular arc at the high-frequency side. It was evident that tensile straining of thedog-bone samples resulted in the entire impedance response being progressivelydisplaced to the right, indicating an overall increase in impedance, and in an increasein the prominence of the bulk arc. The increase in impedance can be attributed toincreased damage resulting from micro-cracking.
Original languageEnglish
Title of host publicationStrain-Hardening Cement-Based Composites
Subtitle of host publicationSHCC4
EditorsViktor Mechtcherine, Volker Slowik, Petr Kabele
PublisherSpringer
Pages292-299
Number of pages8
ISBN (Electronic)9789402411942
ISBN (Print)9789402411935
DOIs
Publication statusPublished - 5 Sep 2017
Event4th International Conference on Strain-Hardening Cement-Based Composites 2017 - Dresden, Germany
Duration: 18 Sep 201720 Sep 2017

Publication series

NameRILEM Bookseries
PublisherRILEM
Volume15
ISSN (Print)2211-0844

Conference

Conference4th International Conference on Strain-Hardening Cement-Based Composites 2017
CountryGermany
CityDresden
Period18/09/1720/09/17

Keywords

  • engineered cementitious composite
  • damage sensing
  • micro-crack
  • piezo-impedance
  • self-sensing
  • tensile test

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    Saraireh, D., Walls, S., Suryanto, B., Starrs, G., & McCarter, W. J. (2017). The Influence of Multiple Micro-cracking on the Electrical Impedance of an Engineered Cementitious Composite. In V. Mechtcherine, V. Slowik, & P. Kabele (Eds.), Strain-Hardening Cement-Based Composites: SHCC4 (pp. 292-299). (RILEM Bookseries; Vol. 15). Springer. https://doi.org/10.1007/978-94-024-1194-2_34