Undrained Shear Behavior of Cement Admixed Clay at High Water Content
Publication: Journal of Geotechnical and Geoenvironmental Engineering
Volume 130, Issue 10
Abstract
Understanding of undrained shear behavior of cement admixed clay is of utmost importance for strength and deformation analyses in composite soft clay under short-term condition. From the critical analysis, the distinct difference in the responses of the same clay at uncemented and induced cemented states is brought out. The undrained shear behavior of uncemented clay is mainly dependent upon the clay fabric. The dismembering of the clay clusters in the fabric brings about the interlocking when the clay is in overconsolidated state. For the cement admixed clay, the clay is in meta-stable state. Hence, the strength and deformation characteristics are controlled by the clay fabric and cementation. The shear resistance is the sum of the shear resistance due to cementation and due to fabric . The term is practically constant with the increase in effective confining pressure at preyield state. The contribution from the clay fabric to the shear resistance comes into the picture at postyield state.
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Published In
Journal of Geotechnical and Geoenvironmental Engineering
Volume 130 • Issue 10 • October 2004
Pages: 1096 - 1105
Copyright
Copyright © 2004 ASCE.
History
Published online: Oct 1, 2004
Published in print: Oct 2004
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