Parameters related to fiber length and processing in cementitious composites

Y. Akkaya*, A. Peled, S. P. Shah

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

42 Scopus citations

Abstract

Effects of fiber length on the tensile and flexural performance of cast and extruded PVA fiber reinforced cement composites were investigated. Microstructural characterization, image analysis, and statistical tools were used to study the influence of processing and fiber length on fiber-matrix bond, fiber dispersion and fiber orientation in the composites. In the extruded composites, shorter fibers improved the performance. In the cast composites, longer fibers gave the best performance. This contradictory trend was found to be a result of differences in fiber failure mechanism, fiber distribution and fiber orientation. Microstructural observations indicated a strong matrix-fiber bond for the extruded composites. Statistical quantification of image analysis indicated a better distribution and alignment of shorter fibers in extruded composites. Statistical quantification of image analysis indicated a better distribution and alignment of shorter fibers in extruded composites.

Original languageEnglish (US)
Pages (from-to)515-524
Number of pages10
JournalMaterials and Structures/Materiaux et Constructions
Volume33
Issue number8
StatePublished - Oct 2000

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Materials Science(all)
  • Mechanics of Materials

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