Jean-Christophe Baudez
Physical aging and thixotropy in sludge rheology
Appl. Rheol. 18:1 (2008) 13495 (8 pages)

Abstract: a new technique of reconstruction of the velocity profile, the behaviour can be modelled by a unique equation including liquid and solid components but also a structural parameter. It is also rigorously demonstrated that the only one rheological behaviour in steady state in the liquid regime is a truncated power-law which can be defined only for a shear rate and a shear stress higher than a critical value. Moreover, the critical shear rate and shear stress increase with the solid content and depend on the fractal dimension of flocs which implies that thixotropic effects are all the more important as the sludge is thick and fresh. © 2008 Applied Rheology.

DOI 10.3933/ApplRheol-18-13495

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