Materials and Structures

, 39:501

First online:

Correlation between Yield Stress and Slump: Comparison between Numerical Simulations and Concrete Rheometers Results

  • N. RousselAffiliated withLCPC Paris

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Results of numerical flow simulations for two slump geometries, the ASTM Abrams cone and a paste cone, are presented. These results are compared to experimental results in the case of a cone filled with cement pastes in order to validate the proposed numerical method and the chosen boundary conditions. The correlation between slump and yield stress obtained numerically for the ASTM Abrams cone is then compared to the experimental correlations obtained by testing concrete with different rheometers during comparative studies that were organized at LCPC Nantes (France) in 2000 and MB Cleveland (USA) in 2003.