EFFECTS OF SODIUM CHLORIDE AND SODIUM CHLORIDE-LIME ADMIXTURES ON COHESIVE OKLAHOMA SOILS

SODIUM CHLORIDE HAS BEEN USED FOR MANY YEARS AS A STABILIZING ADMIXTURE IN "SELECT" BASE COURSE MATERIALS. HOWEVER, LITTLE IF ANY INVESTIGATION OF THE ENGINEERING. PROPERTIES OF SODIUM CHLORIDE-STABILIZED COHESIVE SOIL HAS BEEN DONE. THIS PAPER DESCRIBES THE EFFECTS OF SODIUM CHLORIDE AND SODIUM CHLORIDE-LIME ADMIXTURES ON PLASTICITY, COMPACTION, AND STRENGTH PROPERTIES OF 2 HIGH-VOLUME/CHANGE COHESIVE OKLAHOMA SOILS. AFTER REVIEW OF AVAILABLE LITERATURE AND DISCUSSION OF CHEMICAL AND PHYSICAL REACTIONS THAT OCCUR DURING STABILIZATION, EXPERIMENTAL TEST RESULTS ARE PRESENTED AND DISCUSSED. SMALL PERCENTAGES OF SODIUM CHLORIDE ADDED TO RAW SOIL WERE FOUND TO HAVE NEGLIGIBLE EFFECTS ON SOIL PLASTICITY WHILE INCREASING COMPACTED DENSITY AND DECREASING OPTIMUM COMPACTION MOISTURE CONTENT. WORKABILITY AND MOISTURE-RETENTION QUALITIES OF THE RAW SOIL WERE ALSO ENHANCED. WHEN SMALL PERCENTAGES OF SODIUM CHLORIDE WERE ADDED TO LIME-MODIFIED SOIL, SIMILAR RESULTS WERE OBTAINED: COMPACTED DENSITY WAS INCREASED, OPTIMUM MOISTURE DECREASED, AND THE WORKABILITY AND MOISTURE-RETENTION PROPERTIES OF THE SALT-LIME MIXTURES WERE ENHANCED CONSIDERABLY OVER THOSE OF LIME-MODIFIED SOIL. IN ADDITION, SALT-LIME TREATMENT PRODUCED STRENGTH GAINS OVER THOSE OBTAINED BY LIME TREATMENT ALONE, BOTH AT THE MAXIMUM COMPACTED DENSITY AND OPTIMUM MOISTURE FOR EACH TREATMENT AND WHEN THE SOILS WERE COMPACTED TO SIMILAR MOISTURE AND DENSITY CONDITIONS. REASONS FOR THE BEHAVIOR OBSERVED ARE PRESENTED. /AUTHOR/

Media Info

  • Media Type: Print
  • Features: Figures; References; Tables;
  • Pagination: pp 102-111
  • Monograph Title: Soil stabilization: multiple aspects
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00232962
  • Record Type: Publication
  • Files: TRIS, TRB
  • Created Date: Nov 9 1970 12:00AM