FREEZING-AND-THAWING TESTS ON MIXTURES OF SOIL AND CALCIUM CHLORIDE

THREE SOILS, INCLUDING A SILT, SILTY CLAY, AND CLAY-LIKE SOIL, WERE USED IN THIS STUDY. SPECIMENS WERE MOLDED USING VARYING PERCENTAGES OF CALCIUM CHLORIDE AS AN ADMIXTURE AND FREEZING-AND-THAWING TESTS WERE MADE AT FREEZING TEMPERATURES OF 24F AND -18F. THE SPECIMENS WERE PERMITTED TO ABSORB WATER DURING THE THAWING CYCLES IN SOME OF THE TESTS, WHILE IN OTHER TESTS THEY WERE NOT. FURTHER, SEVERAL SPECIMENS WERE PERMITTED TO CHANGE IN VOLUME WHILE OTHERS WERE NOT. UNCONFINED COMPRESSION AND CALIFORNIA BEARING- RATIO TESTS WERE MADE AFTER VARIOUS CYCLES OF FREEZING AND THAWING. THE RESULTS OF THE STUDY INDICATED THAT THE GREATEST PERCENTAGE LOSS IN STRENGTH RESULTED AFTER ONE CYCLE OF FREEZING AND THAWING. IT WAS FOUND THAT CALCIUM CHLORIDE REDUCED THIS LOSS IN STRENGTH A SMALL AMOUNT, DUE PRINCIPALLY TO ITS ABILITY TO LOWER THE FREEZING TEMPERATURE OF THE WATER IN THE SOIL. IT WAS FURTHER FOUND THAT RESTRAINING THE SPECIMENS DURING THE FREEZING CYCLES AND THUS KEEPING THEM FROM CHANGING VOLUME INCREASED THE EFFECTIVENESS OF THE CALCIUM CHLORIDE. /AUTHOR/

  • Record URL:
  • 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. No 100, pp 1-16, 8 FIG, 6 TAB, 8 REF, 2 APP
  • Authors:
    • Yoder, E J
  • Discussers:
    • Pyne, Robert E
  • Publication Date: 1955

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00237739
  • Record Type: Publication
  • Files: TRIS, TRB
  • Created Date: Jul 7 1994 12:00AM