Estimating rheological properties of cement pastes using various rheological models for different test geometry, gap and surface friction

By Moncef L. Nehdi, M. Rahman. 2004

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Rheology of fresh concrete: from measurements to predictions of casting processes (2007, methodology): “For example, Couette Viscometer [14] or parallel plates rheometer [15] are used in the laboratory to measure yield stress values of cement pastes.”
Cellulose ethers influence on water retention and consistency in cement-based mortars (2011, methodology): “Yahia and Khayat [36] and Nehdi and Rahman [37] performed tests with various models (Bingham, Herschel–Bulkley, Sisko, modified Bingham, Casson, and De Kee models) and concluded that flow properties depended on both material composition and experimental conditions.”
Correlation between Yield Stress and Slump: Comparison between Numerical Simulations and Concrete Rheometers Results (2005, methodology): “For example, Couette Viscometer [1] or parallel plates rheometer [2] are used in the laboratory to measure the yield stress value.”
Rheological behavior of cement pastes from MRI velocimetry (2005, result): “This is not necessarily in contradiction with previous results [14, 15 ]: indeed here we simply observed that the velocity difference between the material and the tool is negligible compared to the material velocity in this region, but this difference might”