Fiber-matrix interaction in microfiber-reinforced mortar

L. R. Betterman, C. Ouyang, S. P. Shah*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

97 Scopus citations

Abstract

Abstract: The tensile properties of mortal reinforced with polyvinyl alcohol (PVA) fibers were studied in this article. Specimens reinforced with varying volume fractions of different-sized fibers were tested in direct tension. Pull-out tests were also conducted to evaluate the interfacial properties between the PVA fiber and mortar matrix. In addition, scanning electron microscopy was used to study the failure mechanism of the fibers in the direct tension test specimens. To study fiber distribution, images of the specimen cross-sections obtained with an optical microscope were analyzed. It was found that if the influence of fiber length is taken into account, the first peak stress can be expressed as a unique function of the measured fiber distance, regardless of fiber volume fraction and diameter.

Original languageEnglish (US)
Pages (from-to)53-61
Number of pages9
JournalAdvanced Cement Based Materials
Volume2
Issue number2
DOIs
StatePublished - Mar 1995

Keywords

  • Bond
  • Cement
  • Composite materials
  • Concrete
  • Fibers
  • Fracture
  • Microscopy
  • Reinforcement
  • Tensile properties

ASJC Scopus subject areas

  • Ceramics and Composites
  • Industrial and Manufacturing Engineering

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