Experimental and Numerical Quantification of Plastic Settlement in Fresh Cementitious Systems
Publication: Journal of Materials in Civil Engineering
Volume 22, Issue 10
Abstract
In this paper, the plastic settlement of mortar is analyzed on the basis of small strain consolidation theory and the approach is compared with experimental data. The amount of settlement caused by the self-weight of bulk mortar was measured using a noncontact laser measurement device. In addition, tests were performed on systems containing different geometries of embedded reinforcement to measure the effect of specimen and inclusion geometry on settlement. The influence of mixture proportions and cover depth were analyzed. The experimental results were correlated with results from the numerical simulation of fresh mortars using consolidation analysis. The results suggest that consolidation theory can be used as a reasonable approach to analyze plastic settlement. Further, this model can be used to demonstrate the effects of differential settlement over reinforcing bars or changes in section height.
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Acknowledgments
This work was supported by the Korea Research Foundation Grant funded by the Korea Government (MOEHRD) (Grant No. UNSPECIFIEDKRF-2006-612-D00089) and the Infra-Structures Assessment Research Center funded by Korea Ministry of Construction and Transportation. The experimental work was performed in the Sensing and Simulation Laboratory at Purdue University during a visit of the second writer. The support which has made this laboratory possible is gratefully acknowledged.
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Information
Published In
Journal of Materials in Civil Engineering
Volume 22 • Issue 10 • October 2010
Pages: 951 - 966
Copyright
© 2010 ASCE.
History
Received: Aug 28, 2008
Accepted: Mar 4, 2010
Published online: Mar 6, 2010
Published in print: Oct 2010
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