Fundamental Parameters for the Stiffness and Strength Control of Artificially Cemented Sand
Publication: Journal of Geotechnical and Geoenvironmental Engineering
Volume 135, Issue 9
Abstract
The treatment of soils with cement is an attractive technique when the project requires improvement of the local soil for the construction of subgrades for rail tracks, as a support layer for shallow foundations and to prevent sand liquefaction. As reported by Consoli et al. in 2007, a unique dosage methodology has been established based on rational criteria where the voids/cement ratio plays a fundamental role in the assessment of the target unconfined compressive strength. The present study broadened the research carried out by Consoli et al. in 2007 through quantifying quantifies the influence of voids/cement ratio on the initial shear modulus and Mohr-Coulomb effective strength parameters of an artificially cemented sand. A number of unconfined compression and triaxial compression tests with bender elements measurements were carried out. It was shown that the void/cement ratio defined as the ratio between the volume of voids of the compacted mixture and the volume of cement is an appropriate parameter to assess both initial stiffness and effective strength of the sand-cement mixture studied.
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Acknowledgments
The writers express their gratitude to the Brazilian MCT/CNPq (projects Edital Universal 2008, Produtividade em Pesquisa and PNPD), PRODOC/CAPES, and to FCT for their support to the research group.
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Information & Authors
Information
Published In
Journal of Geotechnical and Geoenvironmental Engineering
Volume 135 • Issue 9 • September 2009
Pages: 1347 - 1353
Copyright
© 2009 ASCE.
History
Received: Jan 12, 2008
Accepted: Jan 30, 2009
Published online: Feb 13, 2009
Published in print: Sep 2009
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