Determination of Bingham Parameters of Fresh Portland Cement Concrete Using Concrete Shear Box
نویسنده
چکیده
ISSN 2277-5056 | © 2012 Bonfring Abstract--The workability of fresh concrete should be characterized by its rheological properties based on material science approach to overcome the inadequacies of traditional empirical tests like slump test. Generally the rheological properties of fresh concrete are described by Bingham parameters in terms of two physical quantities, namely yield stress and plastic viscosity. Rheometers are used to find the two rheological parameters, which use high speed torque to shear the concrete and the stimulus provided during testing is dynamic. But, there is no concurrence in the measurement of rheological values by various rheometers.
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