Rheological characterization of a time dependent fresh cement paste
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Combining equilibrium and non-equilibrium rheological tests, the yield stress and the plastic viscosity corresponding to the completely build-up structure of a fresh cement paste have been determined. This experimental method is proposed to characterize time-dependent fluids because the values of these parameters are not dependent on the particular structural state of the system and, consequently, are not affected by the particular way in which the rheological test has been designed.
KeywordsRheology Thixotropy Cement paste Non-equilibrium mechanics
- Bird, M.G.H., Yarusso, B.J.: The rheology and flow of viscoplastic material. Rev. Chem. Eng. 1, 1–70 (1982) Google Scholar
- Dullaert, K.: Constitutive equations for thixotropic dispersions. PhD thesis, K.U. Leuven (2005) Google Scholar
- Galindo-Rosales, F.J., Ortega-Casanova, J., Rubio-Hernández, F.J.: Numerical simulation of the flow conditions in three conventional sensor systems. Application to a thixotropic fluid. AERC 2007, Naples, Italy Google Scholar