Size Influence of Specimens and Maximum Aggregate on Dam Concrete: Compressive Strength
- 1 August 2009
- journal article
- Published by American Society of Civil Engineers (ASCE) in Journal of Materials in Civil Engineering
- Vol. 21 (8), 349-355
- https://doi.org/10.1061/(asce)0899-1561(2009)21:8(349)
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.
Keywords
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