EARLY-AGED BOND STRENGTH IN REINFORCED CONCRETE.

Ralph A. Chapman*, Surendra P. Shah

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

67 Scopus citations

Abstract

An investigation was conducted to determine the bond strength between reinforcing steel and concrete loaded at early ages. Bond tests were conducted using a specially developed pullout test. Load-slip characteristics of smooth and deformed bars were compared for specimens with different bar-embedment lengths and tested at various ages from 1 to 28 days of curing. The bond characteristics of deformed bars showed a significant age effect. It was observed that the ACI Building Code-suggested equation for development length overestimated test results for very early ages.

Original languageEnglish (US)
Pages (from-to)501-510
Number of pages10
JournalACI Materials Journal
Volume84
Issue number6
StatePublished - Nov 1 1987

ASJC Scopus subject areas

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

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