Softening reversal and other effects of a change in loading rate on fracture of concrete

Zdenek P Bazant*, Wei Hwa Gu, K. T. Faber

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

29 Scopus citations

Abstract

Time dependence of concrete fracture, in particular the effect of loading rate has been studied mainly in the dynamic range. In the present work, a previous investigation of the rate effect in the static range that covered times to peak from 1 to 300,000 seconds is extended. For this purpose, three-point-bend specimens of three different sizes are subjected to either a sudden 1000-fold increase of the loading rate or a 10-fold sudden decrease of the loading rate. Results obtained including those of a previous study indicate that there exists a significant difference in fracture behaviour for short-time and long-time loads.

Original languageEnglish (US)
Pages (from-to)3-9
Number of pages7
JournalACI Materials Journal
Volume92
Issue number1
StatePublished - Jan 1 1995

ASJC Scopus subject areas

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

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