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Size influence of specimens and maximum aggregate on dam concrete: compressive strength

Khaloo, A. R ; Sharif University of Technology | 2009

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  1. Type of Document: Article
  2. DOI: 10.1061/(ASCE)0899-1561(2009)21:8(349)
  3. Publisher: 2009
  4. Abstract:
  5. The compressive strength of mass concrete in dams is obtained from laboratory experiments of various cylindrical specimens with diameters of 150, 250, and 300 mm, and heights of 300, 500, and 450 mm, respectively. These specimens with 37.5, 75, and 150 mm maximum size of aggregate were investigated. The 7- and 90-day compressive strength of concrete was found to be between 20 and 58 MPa 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 (d,a), and specimen size effect. © ASCE 2009
  6. Keywords:
  7. Aggregates ; Concrete ; Compressive strength of concrete ; Cylindrical specimens ; Dam concrete ; Laboratory experiments ; Mass concrete ; Maximum aggregate sizes ; Size and shape ; Size effect ; Size effects ; Test results ; Concrete aggregates ; Concretes ; Dams ; Size determination ; Compressive strength ; Aggregate size ; Dam ; Experimental study ; Shape
  8. Source: Journal of Materials in Civil Engineering ; Volume 21, Issue 8 , 2009 , Pages 349-355 ; 08991561 (ISSN)
  9. URL: https://ascelibrary.org/doi/10.1061/%28ASCE%290899-1561%282009%2921%3A8%28349%29