Laboratory Evaluation of the Briaud Compaction Device
Publication: Journal of Geotechnical and Geoenvironmental Engineering
Volume 135, Issue 10
Abstract
Soil compaction quality control plays an important role in earthwork construction. Compacted dry density is only loosely related to the actual deformation of the compacted soil. Rather than using dry density as the controlling factor for compacted fills, it would be better to measure properties more closely related to soil compressibility. The Briaud compaction device (BCD) is a simple, small-strain, nondestructive testing apparatus that can be used to evaluate the modulus of compacted soils. The use of the BCD as a field testing device for compacted soil quality control may be more beneficial than the current practice of measuring in situ dry density. In this study, the laboratory procedures of the BCD were evaluated for compacted silt. The modulus determined by the BCD was compared to the dynamic elastic moduli (Young’s and shear moduli) determined from ultrasonic pulse velocity testing on the same compacted silt samples. The BCD modulus correlated well with the ultrasonic pulse velocity results with R2 value of 0.8 or better. Finally, a repeatability and reproducibility study conducted on the BCD showed a variation of 4% from the mean when only the soil properties were altered.
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Acknowledgments
The financial support for this research work was by the Senator Bond Fund in Transportation Research through the Missouri Transportation Institute and is gratefully acknowledged.
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Information & Authors
Information
Published In
Journal of Geotechnical and Geoenvironmental Engineering
Volume 135 • Issue 10 • October 2009
Pages: 1543 - 1546
Copyright
© 2009 ASCE.
History
Received: Aug 14, 2008
Accepted: Feb 28, 2009
Published online: Mar 5, 2009
Published in print: Oct 2009
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