Self-monitoring, pseudo-ductile, hybrid FRP reinforcement rods for concrete applications

C. E. Bakis, A. Nanni, J. A. Terosky, S. W. Koehler

Research output: Contribution to journalArticle

108 Scopus citations

Abstract

The feasibility of hybrid -fiber-reinforced-polymer rods that demonstrate the important safety features of self-monitoring capability and pseudo-ductility is demonstrated. The rods are intended to be the basis of improved pultruded reinforcements for concrete or other civil applications where safety is of critical importance. The lowest elongation fiber in the seven rods investigated is carbon, which by virtue of its piezoresistivity allows the monitoring of deformation and fracture throughout an entire rod with simple electronic equipment. Resistance measurements obtained during quasi-static tests clearly reveal failure of the carbon fibers. Following this easily detected event, higher loads can be safely sustained by the remaining high-elongation fibers if the carbon tows are dispersed in the cross-section rather than concentrated in one location.

Original languageEnglish (US)
Pages (from-to)815-823
Number of pages9
JournalComposites Science and Technology
Volume61
Issue number6
DOIs
StatePublished - May 1 2001

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Engineering(all)

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