Larbi Hammadi, Alain Ponton
Rheological investigation of vase of dam: effects of aging time, shear rate and temperature
Appl. Rheol. 27:1 (2017) 14667 (9 pages)Abstract: In this paper we investigate the rheological complex behavior of a vase of Fergoug dam which is located in the region Perregaux (Western Algeria) as a function of aging time, shear rate, and temperature. The modified Herschel-Bulkley model is used to fit the stationary flow curves of vase as a function of aging time and the generalized model of Kelvin-Voigt is successfully applied to fit the creep and recovery data and to analyze the viscoelastic properties of vase as a function of temperature. Finally the thixotropic behavior studied at constant temperature is analyzed by using the Herschel-Bulkley model including a structural parameter in order to account for time dependent effect. It is demonstrated that the increase in shear rate induces a restructuring and reorganization of the particles of the vase at the microstructural level. © 2017 Applied Rheology.
DOI 10.3933/ApplRheol-27-14667
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