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Piezoresistive cement-based materials for strain sensing

Research output: Contribution to journalArticlepeer-review

223 Scopus citations

Abstract

Cement-based materials that exhibit piezoresistivity with sufficient magnitude and reversibility contain electrically conductive fibers. The phenomenon allows the materials to sense their own strain. The fibers are preferably discontinuous. Carbon fibers (15 μm diameter) are most effective. Steel fibers (8 μm diameter) are less effective. Carbon filaments (0.1 μm diameter) are ineffective. The piezoresistive behavior, mechanism and materials are reviewed, including cement-based materials with continuous and discontinuous fibers.

Original languageEnglish
Pages (from-to)599-609
Number of pages11
JournalJournal of Intelligent Material Systems and Structures
Volume13
Issue number9
DOIs
StatePublished - Sep 2002

Keywords

  • Carbon fiber
  • Cement
  • Concrete
  • Piezoresistive
  • Steel fiber
  • Strain sensor

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