Geometrical and mechanical aspects of fabric bonding and pullout in cement composites

C. Soranakom, Barzin Mobasher

Research output: Contribution to journalArticlepeer-review

51 Scopus citations

Abstract

Fabric reinforced cement composites are a new class of cementitious materials with enhanced tensile strength and ductility. The reinforcing mechanisms of 2-D fabric structures in cement matrix are studied using a fabric pullout model based on nonlinear finite difference method. Three main aspects of the composite are evaluated: nonlinear bond slip characteristic at interface; slack in longitudinal warp yarns, and mechanical anchorage provided by cross yarn junctions. Parametric studies of these key parameters indicate that an increase in the interfacial bond strength directly increases the pullout strength. Grid structures offering mechanical anchorage at cross yarn junctions can substantially increase the pullout resistance. Presence of slack in the yarn geometry causes an apparently weaker and more compliant pullout response. The model was calibrated using a variety of test data on the experimental pullout response of AR-Glass specimens, manufactured by different techniques to investigate the relative force contribution from bond at interface and from cross yarn junctions of alkaline resistant glass fabric reinforced cement composites.

Original languageEnglish (US)
Pages (from-to)765-777
Number of pages13
JournalMaterials and Structures/Materiaux et Constructions
Volume42
Issue number6
DOIs
StatePublished - Jul 1 2009

Keywords

  • Bond properties
  • Debonding
  • Fabric reinforced cement composites
  • Fiber pullout
  • Pullout
  • Textile reinforced concrete

ASJC Scopus subject areas

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

Fingerprint Dive into the research topics of 'Geometrical and mechanical aspects of fabric bonding and pullout in cement composites'. Together they form a unique fingerprint.

Cite this