Determination of and from IDT and Unconfined Compression Testing and Numerical Analysis
This article has been corrected.
VIEW CORRECTIONPublication: Journal of Materials in Civil Engineering
Volume 24, Issue 9
Abstract
This paper presents an alternative criterion (simplified method) to determine the cohesion () and internal angle of friction () properties for two granular materials lightly stabilized with slag lime and general blend (GB) cement–fly ash using indirect diametral tensile (IDT) strength and unconfined compressive strength (UCS). The and values of the stabilized materials obtained on the basis of this criterion were related to the IDT strength and UCS. The results suggest that the and can be estimated using this criterion and the can be accurately related to either the IDT strength or UCS for lightly cementitiously stabilized granular materials. However, the IDT strength is a better characteristic than the UCS to estimate the . To validate the criterion, the and obtained from the proposed criterion were input in the numerical analyses of IDT testing with Mohr-Coulomb failure criterion using FLAC2D finite difference software. The predicted tensile stress–horizontal diametrical deformation numerical results were compared with the corresponding experimental results. On the basis of this numerical analysis, the and parameters estimated from this method could predict the experimental results well in the elastic region but over-predicted the ultimate stress.
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Acknowledgements
The authors would like to thank Mr. David Sharp and Mr. Jim Baxter of SEIT, UNSW@ADFA for their technical assistance during the experimental work reported in this paper. The contribution of Blue Circle Southern Cement Pty Ltd for providing the binders is acknowledged and appreciated.
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Published In
Journal of Materials in Civil Engineering
Volume 24 • Issue 9 • September 2012
Pages: 1153 - 1164
Copyright
© 2012 American Society of Civil Engineers.
History
Received: May 13, 2011
Accepted: Jan 26, 2012
Published online: Jan 28, 2012
Published in print: Sep 1, 2012
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