Assessing Failure Envelopes of Soil–Fly Ash–Lime Blends
Publication: Journal of Materials in Civil Engineering
Volume 27, Issue 5
Abstract
This study aims to establish the influence of curing time and the amount of lime and porosity in the assessment of the Mohr-Coulomb failure envelope of fly ash–lime-treated soils based on unconfined compressive strength () and splitting tensile strength () of such materials. Founded on the concept that the relationship is unique for each specific fine-grained soil, fly ash, and lime blends, it is shown that the angle of shearing resistance of a given lime-treated soil is independent of the porosity and the amount of lime of the specimen and that cohesion intercept is a direct function of (or ) of the improved soil, which depends of the porosity and volumetric amount of lime of the soil–fly ash–lime blends. Finally, the concepts are tested with success for a sandy soil treated with fly ash and lime at distinct curing time periods, considering moderate to strong cementation levels.
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Acknowledgments
The authors wish to express their gratitude to the Brazilian MCT/CNPq (projects Produtividade em Pesquisa, Iniciação Científica, Edital Universal and INCT-REAGEO) for the financial support to the research group.
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Information & Authors
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Published In
Journal of Materials in Civil Engineering
Volume 27 • Issue 5 • May 2015
Copyright
© 2014 American Society of Civil Engineers.
History
Received: Sep 18, 2013
Accepted: May 21, 2014
Published online: Aug 11, 2014
Discussion open until: Jan 11, 2015
Published in print: May 1, 2015
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