GRADING OF AGGREGATES

RESEARCH CONDUCTED ON THE PROBLEMS OF PROPORTIONING MIXTURES AND GRADING OF AGGREGATES IS REVIEWED. IT HAS BEEN DETERMINED THAT THE STRENGTH OF PORTLAND CEMENT CONCRETE VARIES WITH THE AMOUNT OF ACTUAL SOLID MATERIAL PRESENT IN A GIVEN VOLUME, WITH THE RELATIVE PARTS OF THIS VOLUME THAT ARE CEMENT AND AGGREGATE. THE COMMITTEE CONSIDERS THERE IS MERIT IN THIS METHOD OF PORTIONING, SINCE IT MAY ULTIMATELY ELIMINATE MANY OF THE VARIABLES WHICH HAVE BEEN DETERMINED IN CONCRETE STRENGTHS, PROBABLY RESULTING IN SOME MEASURE FROM INACCURATE VOLUMETRIC PROPORTIONING.

• Record URL:
  • https://onlinepubs.trb.org/Onlinepubs/hrbproceedings/4/4-014.pdf
• Supplemental Notes:
  • Vol 4, pp 117-127, 9 FIG, 16 REF. 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:
  • Crum, R W
• Publication Date: 1925

Media Info

• Media Type: Digital/other
• Monograph Title: Proceedings of the Fourth Annual Meeting of the Highway Research Board Held at Washington, D.C., December 4-5, 1924
• Serial:
  • Highway Research Board Proceedings
  • Volume: 4
  • Publisher: Highway Research Board

Subject/Index Terms

• TRT Terms: Aggregate gradation; Aggregate mixtures; Cement content; Concrete aggregates; Portland cement concrete; Proportioning
• Subject Areas: Geotechnology; Highways;

Filing Info

• Accession Number: 00217815
• Record Type: Publication
• Files: TRIS, TRB
• Created Date: Nov 9 1970 12:00AM