2012 | OriginalPaper | Buchkapitel
Swelling Characteristics of Sand-Bentonite Mixtures
verfasst von : Sai K. Vanapalli, L. Lu, J. A. Infante Sedano, W. T. Oh
Erschienen in: Unsaturated Soils: Research and Applications
Verlag: Springer Berlin Heidelberg
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A semi-empirical technique for estimating the swelling pressure of natural expansive soils was proposed by Vanapalli et al. (2010). This technique requires only the information of plasticity index,
I
p
and the variation of moisture content, Δ
w
. In this paper, an attempt is made to estimate the swelling pressure of different sand-bentonite mixtures by extending the proposed technique. In addition, an empirical equation that can be used to predict the variation of swelling pressure with respect to suction using the Soil-Water Characteristic Curve (
SWCC
) as a tool is also proposed.