Influence of Laboratory Compaction Methods on Shear Performance of Graded Crushed Stone
Publication: Journal of Materials in Civil Engineering
Volume 23, Issue 10
Abstract
This paper presents a study on the effects of two laboratory compaction methods, namely, vibrating compaction and modified Proctor compaction on the stress-strain characteristics and shear strength of graded crushed stone. The results of the triaxial shear test show that samples made by vibrating compaction possess higher peak strength, higher initial modulus of elasticity, and lower failure strain than samples made by the modified proctor compaction. Specifically, the cohesion, friction angle, and shear strength of the samples made by the vibrating compaction increase by 38%, 2 degrees, and 10%, respectively, over the samples made by the modified Proctor compaction. In summary, the vibrating compaction method generally performs better than the modified Proctor compaction method, owing to a better distribution of particle orientation. Therefore, it is recommended that, in practice, the vibrating roller should be applied for the construction of graded crushed stone.
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Information & Authors
Information
Published In
Journal of Materials in Civil Engineering
Volume 23 • Issue 10 • October 2011
Pages: 1483 - 1487
Copyright
© 2011 American Society of Civil Engineers.
History
Received: Sep 21, 2010
Accepted: Apr 15, 2011
Published online: Apr 18, 2011
Published in print: Oct 1, 2011
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