Influence of Clods on the Hydraulic Conductivity of Compacted Clay
Publication: Journal of Geotechnical Engineering
Volume 116, Issue 8
Abstract
The hydraulic conductivity of a highly plastic, compacted clay soil is significantly influenced by the size of clods used in preparing the soil for compaction. For soil compacted dry of optimum, hydraulic conductivity is 1,000,000 times smaller when the soil is prepared from small (4.6‐mm) rather than large (19‐mm) clods. For soil compacted wet of optimum, clod size is unimportant. Large differences are seen in the hydraulic conductivity of soils compacted with standard versus modified Proctor procedures. The conclusion reached is that the fate of clods and interclod pores during soil processing and compaction controlled the hydraulic conductivity of the compacted soil. To achieve low hydraulic conductivity, it is necessary to destroy the clods and to eliminate large interclod pores either by wetting the soil to a high water content or using a large compactive effort.
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Information & Authors
Information
Published In
Journal of Geotechnical Engineering
Volume 116 • Issue 8 • August 1990
Pages: 1231 - 1248
Copyright
Copyright © 1990 ASCE.
History
Published online: Aug 1, 1990
Published in print: Aug 1990
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