TYPICAL MOISTURE-DENSITY CURVES PART B T-99 COMPACTION

THE PURPOSE OF THIS RESEARCH WAS TO DEVELOP A FAMILY OF TYPICAL MOISTURE-DENSITY CURVES FOR NORTH DAKOTA SOILS, EVALUATE THEIR ACCURACY, AND MAKE RECOMMENDATIONS FOR THEIR USE. THE ACCURACY OF THE ONE-POINT COMPACTION TEST WAS COMPARED WITH: (1) THE DUPLICATE FULL COMPACTION CURVES: AND, (2) THE FIELD SELECTION OF THE MDD AND OMC THROUGH IDENTIFICATION WITH PRECONSTRUCTION SOIL DATA. A COMPARISON OF THE ERRORS IN PREDICTING THE MAXIMUM DRY DENSITY BY THESE THREE DRIFFERENT METHODS IS GIVEN. THE MAJOR CONCLUSIONS ARE: (1) ONE-POINT COMPACTION TESTS WITH THE TYPICAL CURVES CAN REPLACE THE FULL COMPACTION TEST WITH A LOSS IN ACCURACY OF LESS THAN ONE POUND PER CUBIC FOOT DENSITY IN 95% OF THE TESTS; (2) THE ERROR OF PREDICTING THE MDD AND OMC WILL BE CUT TO ONE-HALF IF THE FIELD INDENTIFICATION METHOD IS REPLACED WITH THE ONE-POINT COMPACTION AND FAMILY OF CURVES; AND (3) THERE IS NO INCREASE IN ACCURACY IN PREDICTING MDD AND OMC BY USING FAMILIES OF CURVES FOR SPECIFIC AREAS OF THE STATE-ONE FAMILY OF CURVES IS ADEQUATE. /AUTHOR/

  • Supplemental Notes:
    • REPORT NO R1 (1)-69
  • Corporate Authors:

    North Dakota State University, Fargo

    Engineering Experiment Station
    Fargo, ND  United States  58105
  • Authors:
    • Jorgenson, J L
  • Publication Date: 1972-4

Subject/Index Terms

Filing Info

  • Accession Number: 00228683
  • Record Type: Publication
  • Source Agency: North Dakota State Highway Department
  • Files: TRIS, STATEDOT
  • Created Date: Feb 11 1973 12:00AM