Abstract
This paper presents experimental results of water retention curves of a compacted clay silt at different temperature. For limited suction values (up to 220 kPa), the results show a significant effect of the temperature variation (from 22°C to 50°C) on the water content at constant suction. This effect cannot be exclusively attributed to the thermal decrease of the surface tension of water. Through this study, the thermal decrease of the thickness of the diffuse double layer around the clay particles is assumed to be the most significant effect that explains the decrease of water retention capability when temperature increases. With this approach, the temperature effect on the water retention curve of any clayey soil can be estimated from the mineralogical composition of the soil. This theory is applied on five different clayey soils.
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© 2012 Springer-Verlag Berlin Heidelberg
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François, B., Ettahiri, S. (2012). Role of the Soil Mineralogy on the Temperature Dependence of the Water Retention Curve. In: Mancuso, C., Jommi, C., D’Onza, F. (eds) Unsaturated Soils: Research and Applications. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-31116-1_23
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DOI: https://doi.org/10.1007/978-3-642-31116-1_23
Publisher Name: Springer, Berlin, Heidelberg
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