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Soil Water Characteristic Curve for Weathered Granite Soils - A Test Method  

Lee Sung Jin (Research Development Team, GS E&C)
Lee Seung Rae (Dept. of Civil & Environmental Engrg., KAIST)
Publication Information
Journal of the Korean Geotechnical Society / v.21, no.2, 2005 , pp. 17-26 More about this Journal
Abstract
Soil water characteristic curve (SWCC) is a unique characteristic that should be considered In the analysis of unsaturated soil and prediction of unsaturated properties. However, the volume change of soil specimens that happens in the existing apparatus affects the SWCC, Therefore, In this study, we intended to obtain more appropriate SWCC by measuring the change In the volume of the specimen in the SWCC tests. The measured change of void ratio indicates that the saturation step prior to the test changes the original structure of the soil specimen. Thus we carried out the test far the same specimen omitting the saturation step prior to the test. The change of void ratio by this test procedure is relatively small.
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