ACCELERATED CURING OF SALT-TREATED AND LIME-TREATED COHESIVE SOILS

This paper describes an investigation to determine elevated temperature and reduced time that would be required for accelerated curing of 2 cohesive Oklahoma soils modified and stabilized with salt and lime and that would produce strength gain and chemical products similar to those obtained by 28-day cure at 80 F and 100 percent humidity. Lime-only treatment data were also collected for comparative purposes. A pilot study at 95 percent humidity and temperatures of 120, 110, 105, and 100 F revealed that a temperature of 105 F best simulated conventional strength time curing conditions. For both soils, at saltlime modification and stabilization treatments, 30 hours of 105-F curing produced equivalent 28-day strength. For lime-only treatment, accelerated curing times varied from 30 hours at modification optimum to 72 hours at stabilization optimum. Differential thermal analysis of conventional-cured and accelerated-cured samples indicated similar mineralogical characteristics existed when equivalent strengths were obtained. A tentative-strength mix design procedure using the technique for accelerated curing is suggested.

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/hrr/1972/381/381-002.pdf
• Supplemental Notes:
  • Sponsored by Committee on Chloride 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:
  • Drake, John A
  • Haliburton, T Allan
• Publication Date: 1972

Media Info

• Media Type: Print
• Features: References;
• Pagination: pp 10-19
• Monograph Title: Compaction and stabilization
• Serial:
  • Highway Research Record
  • Issue Number: 381
  • Publisher: Highway Research Board

Subject/Index Terms

• TRT Terms: Soil mechanics; Soil stabilization
• Subject Areas: Geotechnology; Railroads;

Filing Info

• Accession Number: 00043774
• Record Type: Publication
• Report/Paper Numbers: ISBN 0-309-02050-6
• Files: TRIS, TRB
• Created Date: Jun 1 1973 12:00AM