A SALT-LIME SOIL STABILIZATION FEASIBILITY STUDY; FINAL REPORT

A STUDY WAS CONDUCTED TO DETERMINE FEASIBILITY OF USING SODIUM CHLORIDE AND SODIUM CHLORIDE-LIME ADMIXTURES TO IMPROVE ENGINEERING PROPERTIES OF COHESIVE OKLAHOMA SOILS. DATA CONCERNING THE EFFECTS OF SALT TREATMENT, LIME TREATMENT, AND SALT-LIME TREATMENT OF TWO COHESIVE OKLAHOMA SOILS ARE PRESENTED. SODIUM CHLORIDE WAS FOUND TO HAVE NEGLIGIBLE EFFECTS ON PLASTICITY AND IMPROVE WORKABILITY, COMPACTION, AND STRENGTH PROPERTIES OF THE COHESIVE SOILS. A TENDENCY TOWARD INCREASED SWELLING POTENTIAL AT LOW SALT CONTENTS APPEARS TO MAKE SALT TREATMENT FEASIBLE ONLY WHEN THE COHESIVE FRACTION IS PART OF A SOIL-AGGREGATE MIXTURE OR IN AREAS WHERE RELATIVELY CONSTANT MOISTURE CONTENTS MAY BE MAINTAINED. IN CONJUCTION WITH LIME, SODIUM CHLORIDE WAS AGAIN FOUND TO HAVE NEGLIGIBLE EFFECTS ON PLASTICITY WHILE INCREASING WORKABILITY, COMPACTION, AND STRENGTH PROPERTIES OF LIME TREATED SOIL. SODIUM CHLORIDE TREATMENT IS CONSIDERED FEASIBLE UNDER SPECIFIED CONDITIONS AND SODIUM CHLORIDE-LIME TREATMENT IS CONSIDERED FEASIBLE FOR ANY CASE WHERE LIME TREATMENT IS INDICATED. /AUTHOR/