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Variables controlling stiffness and strength of lime-stabilized soils / Nilo Cesar Consoli in Journal of geotechnical and geoenvironmental engineering, Vol. 137 N° 6 (Juin 2011) 

Public ISBD [article]  in Journal of geotechnical and geoenvironmental engineering > Vol. 137 N° 6 (Juin 2011) . - pp. 628-632 Titre : Variables controlling stiffness and strength of lime-stabilized soils Type de document : texte imprimé Auteurs : Nilo Cesar Consoli, Auteur ; Pedro Domingos Marques Prietto, Auteur Année de publication : 2011 Article en page(s) : pp. 628-632 Note générale : Géotechnique Langues : Anglais (eng) Mots-clés : Lime  Compacted  soils  Voids/lime  ratio  Stiffness  Strength Index. décimale : 624.1 Infrastructures.Ouvrages en terre. Fondations. Tunnels Résumé : Lime treatment is an attractive technique for soil improvement in the construction of rail tracks and pavement layers, in slope protection of earth dams, and as a support layer for shallow foundations. However, there are no dosage methodologies based on rational criteria as in the case of soil-cement technology, where the voids/cement ratio is shown to be a key parameter for the estimation of both strength and stiffness. The present study, therefore, was aimed at quantifying the influence of the amount of lime, porosity, and voids/lime ratio on the initial shear modulus (G0) and unconfined compressive strength (qu) of a lime-treated clayey sandy soil. From the results of unconfined compression tests and bender elements measurements, it was shown, for the soil-lime mixtures investigated, that the voids/lime ratio is an appropriate parameter to assess both initial stiffness and unconfined compressive strength. Also, a unique G0/qu versus voids/lime ratio relationship was established linking the soil-lime mixture initial stiffness and compressive strength. DEWEY : 624.1 ISSN : 1090-0241 En ligne : http://ascelibrary.org/gto/resource/1/jggefk/v137/i6/p628_s1?isAuthorized=no [article] Variables controlling stiffness and strength of lime-stabilized soils [texte imprimé] / Nilo Cesar Consoli, Auteur ; Pedro Domingos Marques Prietto, Auteur . - 2011 . - pp. 628-632. Géotechnique Langues : Anglais (eng) in Journal of geotechnical and geoenvironmental engineering > Vol. 137 N° 6 (Juin 2011) . - pp. 628-632 Mots-clés : Lime  Compacted  soils  Voids/lime  ratio  Stiffness  Strength Index. décimale : 624.1 Infrastructures.Ouvrages en terre. Fondations. Tunnels Résumé : Lime treatment is an attractive technique for soil improvement in the construction of rail tracks and pavement layers, in slope protection of earth dams, and as a support layer for shallow foundations. However, there are no dosage methodologies based on rational criteria as in the case of soil-cement technology, where the voids/cement ratio is shown to be a key parameter for the estimation of both strength and stiffness. The present study, therefore, was aimed at quantifying the influence of the amount of lime, porosity, and voids/lime ratio on the initial shear modulus (G0) and unconfined compressive strength (qu) of a lime-treated clayey sandy soil. From the results of unconfined compression tests and bender elements measurements, it was shown, for the soil-lime mixtures investigated, that the voids/lime ratio is an appropriate parameter to assess both initial stiffness and unconfined compressive strength. Also, a unique G0/qu versus voids/lime ratio relationship was established linking the soil-lime mixture initial stiffness and compressive strength. DEWEY : 624.1 ISSN : 1090-0241 En ligne : http://ascelibrary.org/gto/resource/1/jggefk/v137/i6/p628_s1?isAuthorized=no