Thermo-hydro-mechanical behaviour of an expansive bentonite/silt mixture using different suction controlled techniques

Hossein Nowamooz, Roberto Gómez-Espina, Março Victoria Villar, Farimah Masrouri

Resultado de la investigación: Contribución a los tipos de informe/libroContribución a la conferencia

Resumen

This paper presents an experimental study on a bentonite/silt mixture using odometers with suction controlled either by the osmotic technique or by air overpressure at two different temperatures of 20° and 60°C in a suction range between 0 and 8 M Pa. The compression curves permitted us to interpret the influence of the temperature on the different yielding surfaces. The temperature increase rigidified the samples producing a significant increase of the preconsolidation stress. We observed that the compression curves at different imposed suctions converged toward the saturated state for the high applied vertical stresses. The stress from which the compression curves follow the saturated state is called the saturation pressure (P sat). The P sat values increased with the temperature increase.

Idioma originalInglés
Título de la publicación alojadaUnsaturated Soils - Proceedings of the 5th International Conference on Unsaturated Soils
Páginas589-592
Número de páginas4
Volumen1
EstadoPublicada - 2011
Evento5th International Conference on Unsaturated Soils - Barcelona, Espana
Duración: 6 sep 20108 sep 2010

Otros

Otros5th International Conference on Unsaturated Soils
PaísEspana
CiudadBarcelona
Período6/09/108/09/10

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  • Citar esto

    Nowamooz, H., Gómez-Espina, R., Villar, M. V., & Masrouri, F. (2011). Thermo-hydro-mechanical behaviour of an expansive bentonite/silt mixture using different suction controlled techniques. En Unsaturated Soils - Proceedings of the 5th International Conference on Unsaturated Soils (Vol. 1, pp. 589-592)