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.
Fundamental Parameters for the Stiffness and Strength Control of Artificially Cemented Sand
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TECHNICAL NOTES
Fundamental Parameters for the Stiffness and Strength Control of Artificially Cemented Sand
Nilo Cesar Consoli, Ph.D.; António Viana da Fonseca, D.Sc.; Rodrigo Caberlon Cruz, D.Sc.; and Karla Salvagni Heineck, D.Sc.
Abstract
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Journal of Materials in Civil EngineeringOctober 2010
Journal of Materials in Civil EngineeringJanuary 2011
Journal of Materials in Civil EngineeringNovember 2016
Authors
Associate Professor, Dept. of Civil Engineering, Federal Univ. of Rio Grande do Sul, Av. Osvaldo Aranha, 99, 3 Andar, CEP 90035-190 Porto Alegre, Rio Grande do Sul, Brazil (corresponding author). E-mail: [email protected]
Associate Professor, Faculty of Engineering, Univ. of Porto, Rua Dr. Roberto Frias, s/n, 4200-465 Porto, Portugal. E-mail: [email protected]
Research Fellow, Dept. of Civil Engineering, Federal Univ. of Rio Grande do Sul, Av. Osvaldo Aranha, 99, 3 Andar, CEP 90035-190 Porto Alegre, Rio Grande do Sul, Brazil. E-mail: [email protected]
Adjunct Professor, Dept. of Civil Engineering, Federal Univ. of Rio Grande do Sul, Av. Osvaldo Aranha, 99, 3 Andar, CEP 90035-190 Porto Alegre, Rio Grande do Sul, Brazil. E-mail: [email protected]
Received: January 12, 2008
Accepted: January 30, 2009
Published online: February 13, 2009
© 2009 ASCE