Modelling the Water Retention Domain of a Compacted Scaly Clay

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    A body of experimental data on the water retention behaviour of compacted samples of an Italian scaly clay is analysed. The mechanical and the hydraulic behaviour of compacted samples of this clay are governed by multi-scale arrangement of scales and aggregates, which characterises the compacted clay fabric. At least two different pore networks, namely intra-aggregate and inter-aggregate, may be identified, which interact one with the other along coupled hydro-mechanical paths. The retention behaviour is interpreted in the framework of a comprehensive multi-scale modelling approach recently proposed for compacted clays of low and medium activity, which proves to be able to account for the interaction between the two main micro-structure levels. Dependence of the hysteretic retention domain on void ratio for the active soil is discussed.
    Original languageEnglish
    Number of pages8
    Publication statusPublished - 2012


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