Method of determining the inherent viscosity of a slurry and other rheological trends as illustrated by a data bank of over 200 different slurries

摘要

This paper argues that the viscosity of a slurry is made up of an inherent viscosity component and a mechanical interference component. The inherent viscosity is shown to be given by μ_(inh) = e~(Atot-2.7)Vrtot) where VΓ_(tot) is the Volume Ratio of total solids and A_(tot) is a constant for any particular slurry. The applicability of this equation is illustrated by specific test results for a number of sand-clay and wide size distribution slurries. Plastic viscosity results from a rheology data bank of tests on 201 different slurries are plotted against the p_(50) particle size and are shown to support the theory. Yield stress data for the same slurries are also presented.