EVALUATION OF A CONTINUOUS-LOGGING NUCLEAR MOISTURE-DENSITY MEASUREMENT SYSTEM (LANE-WELLS ROAD LOGGER)

EVALUATION OF A LANE-WELLS ROAD LOGGER AS A REPLACEMENT FOR CONVENTIONAL MOISTURE CONTENT AND DRY DENSITY MEASUREMENTS IN HIGHWAY CONSTRUCTION WAS BEGUN IN 1965 WITH ONE UNIT. THE EVALUATION CONSISTED OF CORRELATION STUDIES ON ACCURACY AND REPEATABILITY, AND GENERAL DEVELOPMENT OF MULTI-PROJECT OPERATING PROCEDURES TO FIT CONSTRUCTION PRACTICES IN SASKATCHEWAN. THE EVALUATION PROGRAM WAS EXPANDED IN 1966 TO THREE UNITS WITH EACH UNIT RESPONSIBLE FOR CONTRACT COMPACTION CONTROL OF SUBGRADE, GRANULAR SUB- BASE AND BASE COURSE, AND ASPHALTIC CONCRETE SURFACE COURSE ON SEVERAL PROJECTS. IN ADDITION, THE UNIT'S ABILITY TO PROVIDE TIGHT CONTROL TO ESTABLISH UNIFORMITY OF COMPACTION WAS ASSESSED AND FOUND SATISFACTORY. THE TWO-YEAR EVALUATION PROGRAM INDICATED THAT WHEN PROPERLY USED, THE ROAD LOGGER MEASUREMENTS ARE AS ACCURATE AS CONVENTIONAL TEST MEASUREMENTS. THE VOLUME OF DATA, THE MATTER IN WHICH IT IS PRESENTED, AND THE SPEED AT WHICH IT IS OBTAINED HAVE BROUGHT THE POSSIBILITY OF QUALITY CONTROL OF COMPACTION PROCESSES, INCLUDING SOILS SELECTION, TO THE POINT WHERE IT IS A PRACTICAL PROCEDURE. THE MAIN DISADVANTAGES OF THE ROAD LOGGER METHOD ARE THE INITIAL COST OF THE DATA AND THE ADDITIONAL TRAINING REQUIRED BY TECHNICIANS TO PROPERLY INTERPRET THE DATA. /AUTHOR/

• Supplemental Notes:
  • Technical REPT 5, 59 PP, 15 FIG, 5 TAB, 6 PHOT, 12 REF,
• Corporate Authors:

  Saskatchewan Dept Hwys, Regina /Canada

  /Materials Research Section
  ,   United States 
• Authors:
  • CULLEY, R W
• Publication Date: 1967-3

Subject/Index Terms

• TRT Terms: Accuracy; Asphalt concrete; Base course (Pavements); Compaction; Construction management; Correlation analysis; Costs; Dry density; Engineering personnel; Granular materials; Logging (Recording); Measurement; Moisture content; Nuclear tests; Quality control; Road construction; Sampling; Scientific personnel; Soils; Subgrade (Pavements); Surface course (Pavements); Test procedures
• Uncontrolled Terms: Data; Reproducibility
• Old TRIS Terms: Initial cost; Soil sampling
• Subject Areas: Construction; Data and Information Technology; Finance; Geotechnology; Highways; Materials;

Filing Info

• Accession Number: 00216264
• Record Type: Publication
• Files: TRIS, ATRI
• Created Date: Feb 17 1994 12:00AM