THE ROLE OF CALCIUM CHLORIDE IN COMPACTION OF SOME GRANULAR SOILS

RESULTS ARE REPORTED FOR 90 COMPACTION RUNS ON SIX TYPICAL A-2 SOILS, ONE PLASTIC AND ONE FRIABLE FROM EACH OF THREE STATES, ALABANA, NORTH CAROLINA, AND VIRGINIA. RUNS WERE MADE USING 0, 0.5, 1, 2, AND 3 PERCENT OF CALCIUM CHLORIDE ADMIXTURE. COMPACTIVE EFFORTS USED WERE 6-IN. DROP WITH THE STANDARD HAMMER, 12-IN. DROP WITH THE STANDARD HAMMER, AND 18-IN. DROP WITH THE 10-LB. HAMMER. OTHER DETAILS OF THE PROCEDURE WERE HELD CONSTANT. THE PROCTOR MOLD WAS USED AND PLASTICITY NEEDLE READINGS WERE TAKEN. THE RESULTS INDICATED THAT A SUBSTANTIAL SAVING IN COMPACTIVE EFFORT REQUIRED TO OBTAIN A SPECIFIED DENSITY IS EFFECTED BY THE ADDITION OF CALCIUM CHLORIDE. FOR SOME SOILS, THE MAXIMUM DENSITY OBTAINED WITHOUT ADMIXTURE WAS REPRODUCED WITH ABOUT 50 PERCENT OF THE COMPACTIVE EFFORT WHEN 3 PERCENT OF ADMIXTURE WAS USED. PENETRATION CURVES INDICATED A NOTICEABLE INCREASE IN WORKABILITY WITH SUCCESSIVE ADDITIONS OF THE CHEMICAL. /AUTHOR/

  • Supplemental Notes:
    • Vol 26, pp 594-602, 7 FIG, 5 TAB
  • Authors:
    • Johnson, A M
    • Barber, E S
  • Publication Date: 1947

Language

  • English

Media Info

  • Monograph Title: Proceedings of the Twenty-Sixth Annual Meeting of the Highway Research Board Held at Washington, D.C. December 5-8, 1946
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00231445
  • Record Type: Publication
  • Files: TRIS, TRB
  • Created Date: Aug 15 2004 2:41AM