Deformation of Lime Modified Clay after Freeze-Thaw

by Emil Karl Sauer, (M.ASCE), Prof. of Civ. Engrg.; Univ. of Saskatchewan, Saskatoon, Canada,
N. F. Weimer, Geotechnical Engr.; Alberta Environment, Edmonton, Alberta, Canada,

Serial Information: Transportation Engineering Journal of ASCE, 1978, Vol. 104, Issue 2, Pg. 201-212

Document Type: Journal Paper


The addition of small quantities of lime to a subgrade soil greatly improves its resistance to deformation which has been found to be extremely useful during construction under wet conditions. Soil suction, dynamic strength, and resilient characteristics of a glacial till commonly used for highway subgrade construction were studied experimentally. Changes in material properties resulting from variations in water content, lime content, confining pressure, and deviator stress intensity before and after subjecting the material to freezing and thawing were the variables considered. The results of the study indicated that the resilient characteristics of the till were so greatly improved due to the addition of lime that under certain conditions, a lime stabilized layer within a pavement structure would likely fail in tension and that the material could eventually behave essentially as a granular material.

Subject Headings: Soil deformation | Granular materials | Lime | Frozen soils | Clays | Construction materials | Subgrades | Subgrade soils

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