Comparative Analysis of Two Techniques for Determining the Rheological Properties of Fluid Mud Suspensions

Document Type

Article

Publication Date

2010

Department

Marine Science

Abstract

Rheological analyses of fluid mud suspensions from three different estuarine and near shore coastal environments showed little variability when processed as Newtonian (fixed shear rates) and non-Newtonian (variable shear rates), the former as used by Brookfield Engineering Company and the latter according to Krieger and Maron (1954). Superimposed flow behavior curves and rheograms, constructed as both Newtonian and non-Newtonian fluids, showed little deviation from each other. While individual shear rates at each rpm may differ, the overall viscous relationships (i.e., yield stress, 'apparent' viscosities, and flow behavior) are nearly identical. If non-Newtonian flow behavior is assumed, we suggest that the data analysis be performed according to Krieger and Maron (1954). If only general behavior patterns are desired, the Newtonian data analysis appears quite adequate.

Publication Title

Marine Georesources & Geotechnology

Volume

28

Issue

4

First Page

345

Last Page

362

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