TEMPERATURE AND TIME EFFECTS ON THE SHEAR STRENGTH OF SAND STABILIZED WITH CATIONIC BITUMEN EMULSION

The paper describes laboratory investigations of the effects of temperature, strain rate, and specimen age on the shear strength of sand stabilized with cationic bitumen emulsion. The shear strength parameters C sub u and phi sub u were determined using standard triaxial testing equipment. The effect of mixing, curing, and testing temperatures on both C sub u and phi sub u were separately resolved. The effect of increased temperature during either mixing or curing was to improve particle coating and cohesive strength. Triaxial tests carried out over a vide range of strain rates showed that C sub u for identical specimens increased as the nth power of the rate of strain, where n is a constant that varies with the bitumen content, whereas phi sub u decreased linearly with the logarithm of strain rate. Unconfined compression tests on specimens of varying ages showed that strength increased significantly with age and that, at ages exceeding 12 weeks, specimens having the highest bitumen content had the highest strength. The effect of decreasing testing temperature, increasing strain rate, and increasing specimen age were analogous in increasing the cohesive strength measured.

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/hrr/1973/442/442-011.pdf
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0309021731
• Supplemental Notes:
  • Publication of the paper sponsored by Committee on Soil-Bituminous Stabilization. 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:
  • Dunn, C S
  • Salem, M N
• 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: Print
• Features: Figures; References; Tables;
• Pagination: pp 113-24
• Monograph Title: Soil stabilization
• Serial:
  • Highway Research Record
  • Issue Number: 442
  • Publisher: Highway Research Board

Subject/Index Terms

• TRT Terms: Age; Bitumen; Cationic emulsified asphalt; Cohesive strength; Laboratory tests; Sand; Shear strength; Strain (Mechanics); Temperature; Time; Triaxial shear tests
• Uncontrolled Terms: Strain rate
• Old TRIS Terms: Unconfined compression tests
• Subject Areas: Geotechnology; Highways;

Filing Info

• Accession Number: 00159562
• Record Type: Publication
• ISBN: 0309021731
• Files: TRIS, TRB
• Created Date: Sep 20 1977 12:00AM