Effect of Accelerated Loading on the Compressibility Characteristics of Lime-Treated Semiarid Soils
Publication: Journal of Materials in Civil Engineering
Volume 26, Issue 5
Abstract
Determination of consolidation properties of compacted lime-treated cohesive clays by the one-dimensional fixed-ring oedometer consolidation method with conventional load increment duration may not be appropriate due to immediate pozzolanic reactions, which occur in the presence of lime. An attempt has thus been made to study the effect of accelerated loading on the compressibility characteristics of two different cohesive clays originating from diversified terrains of Saudi Arabia, before and after treating them with lime. In order to study the extent of improvement on the strength characteristics upon lime treatment, a series of unconfined compression strength tests are also carried out. The effect of lime treatment on the elastic moduli has also been studied. It is observed that, prior to any treatment, the final equilibrium void ratio values increase with the increase in duration of loading for the soils. The addition of lime significantly affects the compressibility behavior of both the soils. The unconfined compressive strength and elastic moduli (initial tangent and secant moduli) values increased with an increase in lime content and curing period.
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Acknowledgments
This paper is a part of a research project supported through the NPST program by King Saud University, Project No. 11-BUI1489-02. The authors would like to thank Department of Civil Engineering, King Saud University, and Eng. Abdullah Bugshan Research Chair in Expansive Soils for providing the necessary experimental facilities to carry out the research work. Further, the authors would like to thank the reviewers for their constructive comments, which greatly improved the paper.
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Published In
Journal of Materials in Civil Engineering
Volume 26 • Issue 5 • May 2014
Pages: 1009 - 1016
Copyright
© 2013 American Society of Civil Engineers.
History
Received: Mar 20, 2013
Accepted: Jun 19, 2013
Published online: Jun 21, 2013
Discussion open until: Nov 21, 2013
Published in print: May 1, 2014
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