Laboratory measured strength correlations of cement-stabilized soils for design optimization
Ouge Wang, Abir Al-Tabbaa
In the proceedings of: GeoManitoba 2012: 65th Canadian Geotechnical ConferenceSession: M2A - Ground Improvement
ABSTRACT: This paper illustrates current work in collating data from different research projects which performed unconfined and triaxial compression tests on identical laboratory-prepared cement-stabilized soil samples. Data from a research project on cement-stabilized Swedish clays done at the Swedish Geotechnical Institute was used to establish correlations between different laboratory strength measurements. In order to generalize performance and optimize design, the effect of variables on strength correlations were evaluated. The results showed that at ~ 100kPa confining stress, the unconfined compressive strength, UCS, and the undrained triaxial strength, qu, had similar magnitudes. At higher confining stress levels, the difference between the two strengths increased, but at lower values, the UCS value appeared to be higher than the qu value. Correlations between strengths and other design variables are discussed and presented.
RÉSUMÉ: Cet article illustre les travaux en cours à la compilation de données provenant de différents projets de recherche qui ont effectué des essais de compression non confinés et triaxial sur identiques préparés en laboratoire des échantillons de sol de ciment stabilisés. Données provenant d'un projet de recherche sur le ciment stabilisé argiles suédoises fait à l'Institut suédois de géotechnique a été utilisé pour établir des corrélations entre différentes mesures de résistance en laboratoire. Afin de généraliser la performance et la conception d'optimiser l'effet des variables sur les corrélations de résistance ont été évalués. Les résultats ont montré que la contrainte de confinement à ~ 100 kPa, la résistance à la compression, la UCS et la résistance non drainée triaxial, qu, avaient des amplitudes similaires. À des niveaux plus élevés de stress de confinement, la différence entre les deux forces a augmenté, mais à des valeurs inférieures, la valeur UCS a semblé être plus élevée que la valeur qu. Les corrélations entre les forces et les variables de conception sont discutées et présentées.
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Ouge Wang; Abir Al-Tabbaa (2012) Laboratory measured strength correlations of cement-stabilized soils for design optimization in GEO2012. Ottawa, Ontario: Canadian Geotechnical Society.
@article{Paper127,
author = Ouge Wang; Abir Al-Tabbaa,
title = Laboratory measured strength correlations of cement-stabilized soils for design optimization,
year = 2012
}
title = Laboratory measured strength correlations of cement-stabilized soils for design optimization,
year = 2012
}