Rheological model for self-consolidating concrete

Van K. Bui*, Yilmaz Akkaya, Surendra P Shah

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

107 Scopus citations

Abstract

This paper presents the development of a rheological model for self-consolidating concrete (SCC). The developed model is based on the paste rheology criteria, which include minimum apparent viscosity, minimum flow, and optimum flow-viscosity ratio to achieve self-consolidating concrete with satisfactory segregation resistance and deformability. The rheology criteria of the cement paste matrix are related to the average aggregate diameter and aggregate spacing, which are influenced by physical properties and content of aggregates. The properties of SCC were characterized by quantitative measures of segregation and flow. The proposed model was developed by testing more than 70 concrete mixtures. The results showed that the paste rheology model is useful in designing SCC mixtures and reducing the extent of laboratory work, testing time, and materials used. The model can also provide a basis for development and utilization of new mineral and chemical admixtures for SCC.

Original languageEnglish (US)
Pages (from-to)549-559
Number of pages11
JournalACI Materials Journal
Volume99
Issue number6
StatePublished - Nov 1 2002

Keywords

  • Concrete
  • Rheology
  • Viscosity

ASJC Scopus subject areas

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

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