EFFECT OF VARYING THE QUANTITY AND QUALITY OF THE SOIL PORTION OF HIGHWAY AGGREGATES ON THEIR STABILITY

THE COMBINATION OF THE PLASTICITY INDEX AND LIQUID LIMIT AS PL/LL X 100, FOR CONVENIENCE DESIGNATED AS "D", WAS FOUND USEFUL TO INDICATE THE QUALITY OF SOIL. THREE SOILS OF DIFFERENT QUALITIES WERE ADDED TO EACH OF THREE SIMILARLY GRADED SPECIMENS OF COARSE MATERIAL TO PRODUCE A MAXIMUM DENSITY GRADING. THIRTEEN PERCENT PASSING THE NO. 40 SIEVE, AND TWO OTHER GRADINGS WHICH DIFFERED ONLY IN THAT THE PERCENTS PASSING THE NO. 40 SIEVE WERE 23 AND 33 RESPECTIVELY WERE USED. THE STABILITY OF THE MINE COMBINATIONS WAS DETERMINED BY THE CALIFORNIA BEARING VALUE TEST. THESE TESTS INDICATED THAT THERE IS A DEFINITE RELATIONSHIP BETWEEN THE QUANTITY D X SOIL PERCENT AND THE STABILITY WHICH SHOULD BE OF CONSIDERABLE VALUE IN THE DESIGN OF SUBGRADES, BASE AND SURFACE COURSES. IT ALSO APPEARS THAT THE PRACTICE OF REJECTING AGGREGATES ON THE BASIS OF LIQUID LIMIT AND PLASTICITY INDEX TESTS WITHOUT PROVIDING FOR CONSIDERATION OF THE RELATIVE IMPORTANCE OF THE QUANTITY OF SOIL IN THE AGGREGATE TESTED MAY OFTEN BE UNECONOMICAL. /AUTHOR/

• Record URL:
  • https://onlinepubs.trb.org/Onlinepubs/hrbproceedings/20/20-048.pdf
• Supplemental Notes:
  • Vol 20, pp 787 - 797, FIGS, 4 TAB. 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:
  • Deklotz, L A
  • Stokstad, O L
• Publication Date: 1941

Media Info

• Media Type: Digital/other
• Monograph Title: Proceedings of the Twentieth Annual Meeting of the Highway Research Board Held at Washington, D.C. December 3-6, 1940
• Serial:
  • Highway Research Board Proceedings
  • Volume: 20
  • Publisher: Highway Research Board

Subject/Index Terms

• TRT Terms: Aggregates; Liquid limits; Plasticity index; Quality control; Soils; Variables
• Uncontrolled Terms: Quality; Quantities
• Old TRIS Terms: Variations
• Subject Areas: Geotechnology; Highways;

Filing Info

• Accession Number: 00217871
• Record Type: Publication
• Files: TRIS, TRB
• Created Date: Aug 15 1971 12:00AM