TRIAXIAL TESTS IN ANALYSIS OF FLEXIBLE PAVEMENTS

A PREVIOUSLY PUBLISHED METHOD OF COMPARING STRENGTHS OF SOILS, AS MEASURED BY TRIAXIAL TESTS, TO ESTIMATED WHEEL- LOAD STRESSES IS DISCUSSED WITH RESPECT TO SUBSEQUENT REVISIONS IN TESTING PROCEDURE AND METHODS OF INTERPRETATION. IN ORDER TO SHOW HOW THIS METHOD OF PAVEMENT ANALYSIS CORRELATES WITH SERVICE BEHAVIOR OF EXISTING PAVEMENTS, TEN PROJECTS IN SOUTH, CENTRAL, AND WEST TEXAS WERE INVESTIGATED. THE INVESTIGATION INCLUDED: SERVICE BEHAVIOR, AGE, TRAFFIC LOADS, THICKNESS OF PAVEMENT LAYERS, TRIAXIAL TESTS, SOIL CONSTANTS AND GRADATION FOR ALL SUBGRADES, SUBBASES AND BASES. FROM THIS STUDY IT APPEARS THAT A CORRELATION EXISTS BETWEEN "PERCENT DESIGN" AND LIFE OF PAVEMENTS. A REPORT COVERING THE DEVELOPMENT AND USE OF TRIAXIAL TESTS FOR SUBGRADE SOILS AND FLEXIBLE BASE MATERIALS WAS PRESENTED TO THE HIGHWAY RESEARCH BOARD BY THE AUTHOR IN 1946. IN 1949, WE SUBMITTED ANOTHER REPORT INCLUDING A CLASSIFICATION CHART AND A DEPTH OF PAVEMENT TABLE WHICH WERE PUBLISHED IN HIGHWAY RESEARCH BOARD BULLETIN 8-R. THE CLASSIFICATION CHART HAS BEEN REVISED ONCE SINCE THEN IN 1952 SO AS TO ACCOMMODATE THE CLASSIFICATION OF COHESIONLESS SANDS. THE DEPTH OF PAVEMENT TABLE WAS REVISED AND PRESENTED IN GRAPHICAL FORM IN 1951 TO AVOID HAVING TO DISTINGUISH BETWEEN HIGH AND LOW MODULUS BASE MATERIALS. /AUTHOR/

• Record URL:
  • http://onlinepubs.trb.org/Onlinepubs/hrbresearchrpts/1954/16b-001.pdf
• 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.
• Corporate Authors:

  Highway Research Board (HRB)

  Washington, DC   
• Authors:
  • McDowell, Chester
• Discussers:
  • Herner, Raymond C
• Conference:
  • 33rd Annual Conference of the Highway Research Board
  • Location: Washington District of Columbia, United States
  • Date: 1954-1-12 to 1954-1-15
• Publication Date: 1954

Media Info

• Media Type: Digital/other
• Features: Appendices; Figures; Tables;
• Pagination: 28p
• Monograph Title: Design of Flexible Pavements
• Serial:
  • Highway Research Board Research Reports
  • Issue Number: 16B
  • Publisher: Highway Research Board

Subject/Index Terms

• TRT Terms: Aggregate gradation; Classification; Flexible pavements; Soils; Subbase (Pavements); Subgrade (Pavements); Thickness; Triaxial shear tests; Wheel loads
• Uncontrolled Terms: Subbase
• Old TRIS Terms: Gradation
• Subject Areas: Geotechnology; Highways; Pavements;

Filing Info

• Accession Number: 00205963
• Record Type: Publication
• Files: TRIS, TRB
• Created Date: May 22 1972 12:00AM