SOIL COMPACTION STUDY-VOLUMES I, II AND III

A STUDY WAS UNDERTAKEN TO DETERMINE' /1/ THE DESIRED CHARACTERISTICS OF COMPACTED SOILS, /2/ THE BEST METHOD FOR MEASUREMENT AND SPECIFICATION OF PROPER COMPACTION AND /3/ THE EFFECTIVENESS OF VARIOUS WAYS OF ACHIEVING COMPACTION. THE FINAL REPORT CONSISTS OF THREE VOLUMES' VOLUME I COVERS THE FIELD PILOT AND LABORATORY STUDIES. THE LABORATORY STUDIES CONSISTED OF THE EVALUATION AND CALIBRATION OF TEST EQUIPMENT AND THE DETERMINATION OF SOIL PROPERTIES. VOLUME II DISCUSSES THE SCOPE OF THE FIELD TESTS AND THE BASIS OF THE RESEARCH PLANS. THE MEASUREMENT APPARATUS AND TECHNIQUES AND COMPACTING EQUIPMENT ARE DESCRIBED IN DETAIL. THE METHODS OF DATA PROCESSING ARE OUTLINED. VOLUME III PRESENTS THE RESULTS OF THE STUDY. PROPERTIES OF THE FIELD COMPACTED SOILS WERE FOUND TO BE SIMILAR TO THESE COMPACTED IN THE LABORATORY. WITHIN THE RANGE OF TEST CONDITIONS MOISTURE CONTENT WAS FOUND TO BE THE MOST SIGNIFICANT FIELD VARIABLE, WITH SOIL TYPE NEXT IN ORDER OF IMPORTANCE. THE COMPACTOR TYPE, LEVEL OF COMPACTIVE EFFORT AND THICKNESS OF LIFT ALSO INFLUENCED THE RESULTS IN MANY CASES. THE MEASURED PROPERTIES ALL INCREASED WITH ROLLER COVERAGE. THE WET DENSITY GROWTH CURVES LEVELED OFF MOST RAPIDLY BUT SIGNIFICANT INCREASES STILL OCCURRED AFTER FOUR COVERAGES. STRENGTH PROPERTIES CONTINUED TO INCREASE AT SIXTEEN COVERAGES FOR MOST TEST CONDITIONS. BOTH DENSITY AND STRENGTH DECREASED WITH AN INCREASE IN LIFT THICKNESS. THE MAGNITUDE OF FIELD VARIABILITY WAS SUCH THAT INDIVIDUAL MEASUREMENTS WOULD APPEAR INADEQUATE FOR COMPACTION CONTROL. /BPR/

  • Corporate Authors:

    Iit Research Institute

    /Research Institute
    ,   United States 
  • Authors:
    • Selig, E T
    • TRUESDALE, W B
    • HAMPTON, D
  • Publication Date: 1967

Subject/Index Terms

Filing Info

  • Accession Number: 00230620
  • Record Type: Publication
  • Source Agency: Bureau of Public Roads /US
  • Report/Paper Numbers: Hpr
  • Files: TRIS
  • Created Date: Aug 15 2004 2:19AM