EFFECT OF AGGREGATE SHAPE ON STABILITY OF BITUMINOUS MIXES /WITH DISCUSSION/

THE EFFECTS OF AGGREGATE SHAPE ON THE STABILITY OF BITUMINOUS MIXES WERE STUDIED USING THREE VARIABLES: (1) SHAPE OF THE COARSE AGGREGATE, (2) SHAPE OF THE FINE AGGREGATE, AND (3) AGGREGATE GRADING. VARIATION IN THE COARSE AGGREGATE SHAPE WAS OBTAINED BY USING ANGULAR CRUSHED LIMESTONE, ROUNDED UNCRUSHED GRAVEL, AND CRUSHED GRAVEL. ROUNDED NATURAL SAND AND ANGULAR CRUSHED LIMESTONE PROVIDED THE CONTRAST IN THE SHAPE OF THE FIRE AGGREGATE. TO FURTHER KNOWLEDGE OF THE INFLUENCE OF CRUSHED GRAVEL ON THE STRENGTH OF BITUMINOUS-AGGREGATE MIXTURES, SEVERAL COMBINATIONS OF CRUSHED AND UNCRUSHED GRAVEL WERE USED ALSO. THE EFFECT OF THESE DIFFERENTLY SHAPED AGGREGATES ON THE STRENGTH CHARACTERISTICS OF BITUMINOUS MIXTURES MADE FROM THEM WERE STUDIED IN THREE REPRESENTATIVE AGGREGATE GRADING REFFERED TO AS DENSE, OPEN, AND ONE-SIZE GRADINGS. ALL OF THE BITUMINOUS MIXTURES TESTED WERE HOT MIXTURES IN WHICH AN ASPHALT CEMENT WAS USED, AND ASPHALT CONTENT WAS KEPT CONSTANT FOR EACH GRADING.

• Record URL:
  https://onlinepubs.trb.org/Onlinepubs/hrbproceedings/33/33-023.pdf
• Supplemental Notes:
  • Vol 33, pp 293-308, 18 FIG, 4 TAB, 35 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:
  • Herrin, M
  • Goetz, W H
  • Campen, W H
• Publication Date: 1954

Media Info

• Media Type: Digital/other
• Monograph Title: Proceedings of the Thirty-Third Annual Meeting of the Highway Research Board, Washington, D.C., January 12-15, 1954
• Serial:
  • Highway Research Board Proceedings
  • Volume: 33
  • Publisher: Highway Research Board

Subject/Index Terms

• TRT Terms: Aggregates; Bituminous mixtures; Coarse aggregates; Fine aggregates; Grading (Earthwork); Gravel; Shape; Stability (Mechanics)
• Uncontrolled Terms: Grading
• Subject Areas: Geotechnology; Highways; Materials;

Filing Info

• Accession Number: 00211625
• Record Type: Publication
• Files: TRIS, TRB
• Created Date: May 9 1972 12:00AM