STABILIZATION OF LATERITIC SOIL WITH SAND

AN INVESTIGATION IS MADE INTO THE EFFECTS OF STABILIZATION WITH SAND ON MOISTURE DENSITY RELATION AND CBR OF LATERITIC SOILS FROM THAILAND. TEST RESULTS SHOW THAT THE DECREASE IN THE PLASTICITY INDEX OF LATERITIC SOIL IS PROPORTIONAL TO THE INCREASE IN THE PERCENTAGE OF SAND. THERE IS ALSO AN OPTIMUM SAND PERCENTAGE AT WHICH THE SOIL REACHES ITS MAXIMUM DENSITY. HOWEVER, UNSATURATED AND SATURATED MAXIMUM CBR OCCUR AT MOISTURE CONTENT ABOUT 1 PERCENT LESS THAN OPTIMUM. THE OPTIMUM SAND CONTENT FOR MAXIMUM UNSOAKED CBR IS SOMEWHAT LESS THAN THAT INDICATED BY COMPACTION TESTS, WHEREAS THE OPTIMUM SAND CONTENT FOR MAXIMUM SOAKED CBR IS ABOUT THE SAME AS THAT INDICATED BY COMPACTION TESTS. THE CURVES OF UNSOAKED AND SOAKED CBR FOR SAMPLES COMPACTED AT THE OPTIMUM MOISTURE CONTENT VARY ACCORDING TO THE SAND CONTENT. COMPARISON OF COMPACTION CURVES OBTAINED FOR FRESH AND REPEATEDLY USED SOIL SAMPLES SHOWS THAT REPEATEDLY USED SOILS HAVE HIGHER MAXIMUM DENSITIES AND THAT THE OPTIMUM SAND PERCENTAGE IS SOMEWHAT HIGHER. /RRL/

Media Info

  • Serial:
    • Issue Number: 0

Subject/Index Terms

Filing Info

  • Accession Number: 00229373
  • Record Type: Publication
  • Source Agency: Road Research Laboratory /UK
  • Files: TRIS
  • Created Date: Apr 10 1971 12:00AM