Correlating dynamic segregation of self-consolidating concrete to the slump-flow test

Nathan Tregger*, Amedeo Gregori, Liberato Ferrara, Surendra P Shah

*Corresponding author for this work

Research output: Contribution to journalArticle

40 Scopus citations

Abstract

The three key characteristics of self-consolidating concrete are flowability, segregation resistance and passing ability. Quality control of flowability is typically predicted by the final diameter (D F) of the slump-flow test. In this study, the time required to reach the final diameter (T F) of the slump-flow test is correlated to dynamic segregation for mixes with a constant D F and aggregate-to-binder ratio. Segregation was determined by measuring the radial aggregate distribution from the slump-flow test. It was demonstrated that increasing the T F improved dynamic segregation resistance. It was also found that the T F was more indicative of viscosity than the time to reach a diameter of 50 cm (T 50).

Original languageEnglish (US)
Pages (from-to)499-505
Number of pages7
JournalConstruction and Building Materials
Volume28
Issue number1
DOIs
StatePublished - Mar 1 2012

Keywords

  • Segregation
  • Self-consolidating concrete
  • Slump-flow test
  • T
  • Viscosity
  • Yield stress

ASJC Scopus subject areas

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

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