Determination of the rheological parameters of self-compacting concrete matrix using slump flow test

Marina K A Neophytou, Stella Pourgouri, Antonios D. Kanellopoulos, Michael F. Petrou, Ioannis Ioannou, Georgios Georgiou, Andreas Alexandrou

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)


The classification of a concrete mixture as self-compacting (SCC) is performed by a series of empirical characterization tests that have been designed to assess not only the flowability of the mixture but also its segregation resistance and filling ability. The objective of the present work is to correlate the rheological parameters of SCC matrix, yield stress and plastic viscosity, to slump flow measurements. The focus of the slump flow test investigation was centered on the fully yielded flow regime and an empirical model relating the yield stress to material and flow parameters is proposed. Our experimental data revealed that the time for a spread of 500 mm which is used in engineering practice as reference for measurement parameters, is an arbitrary choice. Our findings indicate that the non-dimensional final spread is linearly related to the non-dimensional yield-stress. Finally, there are strong indications that the non-dimensional viscosity of the mixture is associated with the non-dimensional final spread as well as the stopping time of the slump flow; this experimental data set suggests an exponential decay of the final spread and stopping time with viscosity.
Original languageEnglish
Article number62402
Number of pages12
JournalApplied Rheology
Issue number6
Publication statusPublished - 9 Dec 2010


  • Dimensional analysis
  • Rheology
  • Self compacting concrete
  • Slump flow
  • Yield stress


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