Yield Stress of Super Soft Clays
Publication: Journal of Geotechnical and Geoenvironmental Engineering
Volume 125, Issue 6
Abstract
Super soft clays can be defined as insensitive cohesive soils that have a water content higher than the liquid limit. It is difficult to define and measure the strength of these soils using conventional soil mechanics apparatus. It is proposed that the shear strength be determined using a rotary viscometer and be defined as the shear stress at zero strain (shear strain) rate in this test of viscosity. In this paper a number of potential methods to determine the shear strength or yield stress of super soft clays is considered. The yield stress of four super soft soils, each with varying water contents, have been measured using a rotary viscometer. The results of these tests together with published data are used to develop a relationship between the yield stress and the index properties of super soft clays.
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Published In
Journal of Geotechnical and Geoenvironmental Engineering
Volume 125 • Issue 6 • June 1999
Pages: 499 - 509
History
Received: Jun 13, 1996
Published online: Jun 1, 1999
Published in print: Jun 1999
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