RELATIVE COMPACTION STUDY - FINAL REPORT

AN INVESTIGATION IS PRESENTED OF THE PRINCIPLES INVOLVED IN DETERMINATION OF PERCENT RELATIVE COMPACTION WHEN USING A STATISTICAL AREA CONCEPT METHOD. SOME OF THE VARIABLES INVOLVED WITH THE NUCLEAR GAGE WERE ALSO STUDIED. THE FACTORS INVOLVED WERE THE WET WEIGHT METHOD, COMPOSITE TEST MAXIMUM DENSITY, USE OF A STATISTICAL RANGE OF TEST MAXIMUM VALUES, COMPARISON OF STANDARD LABORATORY AND FIELD METHODS OF CALIBRATING A NUCLEAR GAGE AND VARIATIONS DUE TO TESTING AT DIFFERENT GAGE DEPTHS. IT IS CONCLUDED THAT THE FIELD USE OF THE WET METHOD AND COMPOSITE TEST MAXIMUM DENSITY ARE GOOD. THE USE OF A STATISTICAL RANGE OF VALUES APPEARS FEASIBLE FOR UNIFORM MATERIALS. THE CORRELATION OF STANDARD LABORATORY AND FIELD METHODS OF CALIBRATION IS GENERALLY GOOD FOR DENSITY BUT NOT FOR MOISTURE. THE DIFFERENCE IN TEST VALUES DUE TO TESTING AT DIFFERENT DEPTHS IS POOR. DENSITY AND MOISTURE DETERMINATIONS FROM ONE ONE-MINUTE GAGE READING ARE COMPARABLE TO THE DETERMINATION MADE FROM THE AVERAGE OF TWO ONE-MINUTE READINGS. /AUTHOR/

• Supplemental Notes:
  • Res Rept No M&R 652073, 115 PP, 82 FIG, 17 TAB, 9 REF
• Corporate Authors:

  California Division of Highways

  Bridge Department
  Sacramento, CA  United States  05914
• Authors:
  • Obermuller, J C
  • Smith, T
• Publication Date: 1971-3

Subject/Index Terms

• TRT Terms: Calibration; Compaction; Measuring instruments; Nuclear tests; Statistical analysis
• Old TRIS Terms: Maximum density (Laboratory tests); Relative compaction; Wet weight
• Subject Areas: Construction; Data and Information Technology; Geotechnology; Highways; Materials;

Filing Info

• Accession Number: 00215437
• Record Type: Publication
• Files: TRIS
• Created Date: Oct 3 1971 12:00AM