Effect of increased tensile strength and toughness on reinforcing-bar bond behavior

Neven Krstulovic-Opara, Kimberly A. Watson, James M. LaFave

Research output: Contribution to journalArticlepeer-review


The research reported here investigated the pull-out behavior of deformed reinforcing bars embedded in fiber-reinforced-concrete (FRC) and high-performance- fiber-reinforced-concrete (HPFRC) matrices exhibiting increased tensile strength and toughness. Increased strength and toughness of the embedding matrix resulted in a significant increase in pull-out strength, strain capacity, and over-all ductility, as well as more stable crack development. Additionally, when sufficient lateral constraint (i.e. cover thickness) was provided, the use of an HPFRC matrix exhibiting strain-hardening behavior resulted in a slip-hardening pull-out response.

Original languageEnglish (US)
Pages (from-to)129-141
Number of pages13
JournalCement and Concrete Composites
Issue number2
StatePublished - 1994
Externally publishedYes


  • Bond (concrete to reinforcement)
  • cracking
  • ductility, pullout tests
  • high performance fiber reinforced concretes
  • metal fibers
  • slippage

ASJC Scopus subject areas

  • Building and Construction
  • Materials Science(all)

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