Research Article
Sep 1964
Compressibility of Clay
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VIEW THE REPLYPublication: Journal of the Soil Mechanics and Foundations Division
Volume 90, Issue 5
Abstract
Experiments on artificially sedimented clays at loading rates as low as 10-4 offer direct evidence that the compressibility of sedimented clays is much smaller during deposition than that measured in the usual oedometer test. Normally consolidated clays subjected to long periods of secondary compression will not compress along the virgin curve until a substantial pressure increment (as large as 0.4 of the effective overburden pressure) has been added. High quality sampling techniques should include minimizing the time duration between stress release in sampling and stress reapplication in the oedometer. Tests on freeze-dried kaolin clay indicate no measurable viscous retardation to compression over a wide range of load-increment ratios. Subsequent creep strains were approximately linear with log time. A marked reduction in compressibility was observed with decreasing load-increment ratio, but creep strains were found to decrease moderately with increasing effective stress. A hypothesis for the mechanism of compression is proposed and its validity is examined in the light of available data.
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Information
Published In
Journal of the Soil Mechanics and Foundations Division
Volume 90 • Issue 5 • September 1964
Pages: 133 - 155
Copyright
© 1964 American Society of Civil Engineers.
History
Published in print: Sep 1964
Published online: Feb 12, 2021
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Authors
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G. A. Leonards, F.ASCE
Prof. of Soil Mechanics, Purdue Univ., Lafayette, Ind.
A. G. Altschaeffl, M.ASCE
Assoc. Prof. of Civ. Engrg., Purdue Univ., Lafayette, Ind.
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ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.