Penetration Resistance Value along Compaction Curves
Publication: Journal of Geotechnical Engineering
Volume 120, Issue 1
Abstract
Complete compaction curves of miscellaneous natural soils and sand‐clay mixtures were determined. The simple compression resistances or the penetration resistances were simultaneously determined. On compaction curves a particular water content appeared, the compaction sensitivity threshold (CST), linked to the clay content, the compactive force value, and the clay mineralogy. It is shown that this CST appeared also as a particular water‐content value on resistance curves. These results showed that the maximum dry density had no effect on variations in these resistances. As the water content increased from the CST, the penetration resistance or the simple resistance decreased to zero, a value at which soils might be considered saturated. It is shown that when the water content was lower than the CST aggregates remained individualized and then the hypothesis that the clay content still did not have its lubricating action was reinforced. This lubricating action appeared as the water content was higher than the CST.
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Information & Authors
Information
Published In
Journal of Geotechnical Engineering
Volume 120 • Issue 1 • January 1994
Pages: 46 - 59
Copyright
Copyright © 1994 American Society of Civil Engineers.
History
Received: Dec 31, 1991
Published online: Jan 1, 1994
Published in print: Jan 1994
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