RELATIONSHIPS OF CONCRETE STRENGTH TO MAXIMUM SIZE AGGREGATE

THE CONCEPT THAT CONCRETE STRENGTH IS BENEFITED BY USING THE LARGEST MAXIMUM SIZE OF AGGREGATE PRACTICABLE IS DISPROVED. IT WAS FOUND THAT MAXIMUM STRENGTHS IN BOTH FLEXURE AND COMPRESSION WERE SECURED WITH COARSE-AGGREGATE OF ABOUT 3/4 IN. MAXIMUM SIZE. USE OF COARSER AGGREGATES, IN SPITE OF REDUCTION IN MIXING WATER, CAUSES A REDUCTION IN STRENGTHS. THE CAUSE OF THIS REDUCTION OF STRENGTH WAS SOUGHT IN CONCEPTS THAT GREATER SURFACE AREA FOR BOND AND CROSS-SECTIONAL AREA TO RESIST SHEAR ARE AVAILABLE WITH THE USE OF SMALLER SIZE AGGREGATES.

• Record URL:
  https://onlinepubs.trb.org/Onlinepubs/hrbproceedings/38/38-018.pdf
• Supplemental Notes:
  • Vol 38, pp 367-385. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved.
• Authors:
  • WALKER, S
  • Bloem, D L
  • Gaynor, R D
  • Gray, J E
• Publication Date: 1959

Media Info

• Media Type: Digital/other
• Monograph Title: Proceedings of the Thirty-Eighth Annual Meeting of the Highway Research Board, Washington, D.C., January 5-9, 1959
• Serial:
  • Highway Research Board Proceedings
  • Volume: 38
  • Publisher: Highway Research Board

Subject/Index Terms

• TRT Terms: Aggregates; Bonds; Coarse aggregates; Compression; Concrete; Flexure; Mixing; Size; Strength of materials; Surfaces; Water
• Uncontrolled Terms: Relationships; Surface area
• Subject Areas: Geotechnology; Highways; Materials;

Filing Info

• Accession Number: 00217627
• Record Type: Publication
• Files: TRIS, TRB
• Created Date: Jul 8 1994 12:00AM