Variables Controlling Strength of Artificially Cemented Sand: Influence of Curing Time
Publication: Journal of Materials in Civil Engineering
Volume 23, Issue 5
Abstract
The present research aims to quantify the influence of the curing time period, amount of cement, porosity, and voids/cement ratio in the assessment of unconfined compressive strength () of artificially cemented sand. A program of unconfined compression tests considering distinct curing time periods (), porosities (), and cement contents () was carried out in the present study. It has been found that a power function adapts well unconfined compressive strength values with increasing cement content and with reducing porosity of the compacted mixture. As expected, the unconfined compressive strength of the cemented sand increases with an increasing curing time period. It was also shown that the voids/cement ratio () is a good parameter in the evaluation of the unconfined compressive strength of the cemented sand studied, for the whole range of cement and porosities studied, at each specific curing time period studied. Finally, a unique relationship can be achieved linking the unconfined compressive strength () with the voids/cement ratio () and the curing period ().
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Acknowledgments
The authors wish to express their gratitude to the Brazilian Research Council CNPq/MCT (Projects Produtividade em Pesquisa Grant # UNSPECIFIED301869/2007-3, Edital Universal Grant # UNSPECIFIED472851/2008-0, PNPD Grant # UNSPECIFIED558474/2008-0 and INCT-REAGEO Grant # UNSPECIFIED573795/2008-8), to the Brazilian Electrical Energy Agency ANEEL (Project UNSPECIFIEDP&D 0089-036/2006-CEEE-GT/9936455), and to UNSPECIFIEDPRODOC CAPES for their financial support to the research group. The authors would also like to thank the anonymous reviewers for their insightful comments and suggestions that improved the content of this technical note.
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Information & Authors
Information
Published In
Journal of Materials in Civil Engineering
Volume 23 • Issue 5 • May 2011
Pages: 692 - 696
Copyright
© 2011 American Society of Civil Engineers.
History
Received: Mar 15, 2010
Accepted: Oct 8, 2010
Published online: Oct 26, 2010
Published in print: May 1, 2011
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