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Variation of Initial Soil Suction with Compaction Conditions for Clayey Soils

Published online by Cambridge University Press:  09 August 2012

S.-R. Yang ,
H.-D. Lin  and
W.-H. Huang
S.-R. Yang*
Affiliation:
Department of Civil Engineering, National Pingtung University of Science and Technology, Pingtung, Taiwan 91201, R.O.C.
H.-D. Lin
Affiliation:
Department of Construction Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan 10672, R.O.C.
W.-H. Huang
Affiliation:
Department of Civil Engineering, National Central University, Taoyuan County, Taiwan 32054, R.O.C.
*
*Corresponding author ([email protected])
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Abstract

In this study, the initial soil suction of as-compacted clayey soils was evaluated for various compaction conditions, covering a wide range of compaction energy and molding water content. The soil specimens were prepared by impact compaction under three levels of compaction energy. The filter paper method was used to measure the initial soil suction of as-compacted specimens. Test results indicate that the relationship between the soil suction and the molding water content is bilinear under three different compaction energies. However, the effect of compaction energy on soil suction is different for the soils with different amounts of clay fraction and is elucidated by the macro soil properties. The change of soil suction due to different compaction energies can be predicted by the void ratio and the degree of saturation.

Keywords

Soil suctionCompaction energyFilter paper method
Type
Articles
Information
Journal of Mechanics , Volume 28 , Issue 3 , September 2012 , pp. 431 - 437
Copyright
Copyright © The Society of Theoretical and Applied Mechanics, R.O.C. 2012

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