Desiccation-induced shrinkage in compacted lateritic soils

被引：30
|
作者：
Osinubi K.J. [1 ]
Nwaiwu C.M.O. [2 ]
机构：
[1] Department of Civil Engineering, Ahmadu Bello University, Zaria 810001, Kaduna State
[2] Department of Civil and Water Resources Engineering, University of Maiduguri, Maiduguri 600004, Borno State
来源：
Geotechnical and Geological Engineering | 2008年 / 26卷 / 5期
关键词：
Compaction; Desiccation; Laterites; Liner; Moisture-density relation; Water content;
D O I：
10.1007/s10706-008-9193-4
中图分类号：
学科分类号：
摘要：
Specimens prepared from three lateritic soil samples were subjected to drying under laboratory conditions. Volumetric shrinkage strains were measured at the end of the drying period. Results of this study indicate that, for the lateritic soils tested, volumetric shrinkage strains are influenced by soil composition and compaction conditions. Volumetric shrinkage strain increased with higher compaction water content. The influence of compaction water content on measured volumetric shrinkage strain was more pronounced in specimens with higher fines content. A regression equation was developed from the data to estimate volumetric shrinkage strain given the compaction water content relative to optimum, plasticity index, fines content and compactive effort. © Springer Science+Business Media B.V. 2008.
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页码：603 / 611
页数：8
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