Size Influence of Specimens and Maximum Aggregate on Dam Concrete: Compressive Strength
Publication: Journal of Materials in Civil Engineering
Volume 21, Issue 8
Abstract
The compressive strength of mass concrete in dams is obtained from laboratory experiments of various cylindrical specimens with diameters of 150, 250, and , and heights of 300, 500, and , respectively. These specimens with 37.5, 75, and maximum size of aggregate were investigated. The 7- and compressive strength of concrete was found to be between 20 and depending on the size of the specimens. The results reveal the existence of a significant size effect. Based on test results, relationships between the strength of mass concrete specimens and their size and shape are developed. Finally, results and a discussion are presented regarding compressive strength gain with time, effect of maximum aggregate size , and specimen size effect.
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Acknowledgments
The writers are grateful for the generous support provided by Sharif University of Technology. The Design Unit of Karun III Dam was instrumental in conducting the experimental studies. Also, special thanks are extended to the laboratory staff of Karun III.
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Information & Authors
Information
Published In
Journal of Materials in Civil Engineering
Volume 21 • Issue 8 • August 2009
Pages: 349 - 355
Copyright
© 2009 ASCE.
History
Received: May 8, 2006
Accepted: Nov 25, 2008
Published online: Jul 15, 2009
Published in print: Aug 2009
Notes
Note. Associate Editor: Zhishen Wu
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