REVIEW OF AGGREGATE BLENDING TECHNIQUES

A number of aggregate blending methods have been proposed and used since the work of Fuller and Thompson on propertioning concrete. In this paper, a review of these methods is made, from the simplest trial-and-error method for two aggregates to the most sophisticated mathematical method based on theories of least squares and use of electronic computers. Six major methods are examined: trial and error, triangular chart, rectangular-chart or straight-line method and variations, Sargent's (triangular-prism projection) method, Rothfuchs' (balanced area) method and modification by the Japanese Highway Institution, and mathematical method and its variations. A general discussion of grading requiremnts and the general principles and procedures of aggregate blending problems are presented. For each method reviewed, the specific theories and steps are described, the applications and limitations are suggested, and one or more examples are given to illustrate the method. /Author/

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/hrr/1973/441/441-010.pdf
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0309021723
• Supplemental Notes:
  • 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:
  • Lee, Dah-Yinn
• Conference:
  • 52nd Annual Meeting of the Highway Research Board
  • Location: Washington District of Columbia, United States
  • Date: 1973-1-22 to 1973-1-26
• Publication Date: 1973

Media Info

• Media Type: Digital/other
• Features: Figures; References; Tables;
• Pagination: pp 111-127
• Monograph Title: Grading of concrete aggregates
• Serial:
  • Highway Research Record
  • Issue Number: 441
  • Publisher: Highway Research Board

Subject/Index Terms

• TRT Terms: Blending; Grading (Earthwork); Information processing; Least squares method; Mathematical models; Proportioning
• Uncontrolled Terms: Grading
• Old TRIS Terms: Aggregate blending
• Subject Areas: Geotechnology; Highways;

Filing Info

• Accession Number: 00159552
• Record Type: Publication
• ISBN: 0309021723
• Files: TRIS, TRB
• Created Date: Sep 20 1977 12:00AM