Durability of Cement Stabilized Low Plasticity Soils
Publication: Journal of Geotechnical and Geoenvironmental Engineering
Volume 134, Issue 2
Abstract
Three testing methods for predicting the durability of cement-stabilized soils—the tube suction (TS), 7-day unconfined compression strength (UCS), and wetting–drying durability tests—were tested and compared for their correlations and influence factors using a problematic low plastic silt clay from subgrade commonly encountered in Louisiana. A series of samples was molded at six different cement dosages (2.5, 4.5, 6.5, 8.5, 10.5, and 12.5% by dry weight of the soil) and four different molding moisture contents (15.5, 18.5, 21.5, and 24.5%). The test results indicate that the water–cement ratio of cement-stabilized soil had the dominant influence on the maximum dielectric value (DV), 7-day UCS, and durability of stabilized samples tested, although the dry unit weight of cement-stabilized soil could cause the variation of the results. This study confirms that TS, 7-day UCS, and wetting-drying durability tests are equivalent in predicting durability, and tentative charts to ensuring the durability of cement-stabilized low plasticity soils are developed using their 7-day UCS or the maximum DV values.
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Acknowledgments
The writers want to thank Amy Dupre for conducting extensive laboratory tests. The help from Melba Bounds and Andrew Guempel during this study is also appreciated.
References
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Information & Authors
Information
Published In
Journal of Geotechnical and Geoenvironmental Engineering
Volume 134 • Issue 2 • February 2008
Pages: 203 - 213
Copyright
© 2008 ASCE.
History
Received: Feb 27, 2006
Accepted: Jul 3, 2007
Published online: Feb 1, 2008
Published in print: Feb 2008
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