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A comparative study of steel- and carbon-fibre cement as piezoresistive strain sensors

  • SUNY Buffalo

Research output: Contribution to journalArticlepeer-review

176 Scopus citations

Abstract

Carbon-fibre (15 μm diameter) cement is a better piezoresistive strain sensor than stainless steel-fibre (8 μm diameter) cement at a similar fibre volume fraction, as shown by a higher signal-to-noise ratio and better reversibility upon unloading, albeit having a lower gauge factor (particularly under tension). Steel-fibre cement containing 0.36 vol% fibres is a better piezoresistive strain sensor than that containing 0.72 vol% fibres, as shown by better reversibility upon unloading and the higher gauge factor under compression. The difference in performance of carbon- and steel-fibre cement is attributed to a difference in piezoresistivity mechanism.

Original languageEnglish
Pages (from-to)119-128
Number of pages10
JournalAdvances in Cement Research
Volume15
Issue number3
DOIs
StatePublished - Jul 2003

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