Comparative Study of Different Subbase Materials
Publication: Journal of Materials in Civil Engineering
Volume 18, Issue 4
Abstract
California Bearing Ratio (CBR) and static and cyclic triaxial tests were conducted on the four most frequently encountered local materials—fly ash, coarse sand, stone dust, and river bed material (RBM)—for their use in the subbase layer of a flexible pavement. The CBR of stone dust was the maximum value of all, but its behavior under dynamic load in triaxial tests was inferior to that of the other materials. Fly ash has low CBR, but better stress-strain behavior than stone dust. The results show that RBM is the best material for use in the subbase layer as it had good CBR, high E-value and resilient modulus, and low permanent strain values compared to other materials used in this study.
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Information & Authors
Information
Published In
Journal of Materials in Civil Engineering
Volume 18 • Issue 4 • August 2006
Pages: 576 - 580
Copyright
© 2006 American Society of Civil Engineers.
History
Received: Jan 14, 2005
Accepted: Jun 17, 2005
Published online: Aug 1, 2006
Published in print: Aug 2006
Notes
Note. Associate Editor: Kamran M. Nemati
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