INVESTIGATE THE BENEFITS OF REQUIRING 95% RELATIVE COMPACTION IN THE TOP 30 INCHES OF THE ROADWAY SECTION

THE INVESTIGATION CONCERNED THE NEED FOR REQUIRING 95 PERCENT RELATIVE COMPACTION FOR MATERIAL WITHIN 2.5 FEET OF THE FINISHED PAVEMENT SURFACE, FOR ALL STATE HIGHWAYS. THE OBJECTIVE WAS TO DETERMINE TO WHAT DEGREE, IF ANY, THE SPECIFICATIONS COULD BE REDUCED. A LIMITED STUDY OF THE LITERATURE, OF OTHER STATE PRACTICES, OF SHEAR STRENGTH, R-VALUE, AND OF PAVEMENT DEFLECTION VS. DENSITY OF THE FOUNDATION SOIL INDICATED THAT FURTHER STUDY OF DENSITY ALONE WOULD BE FRUITLESS. THE RESEARCHERS CONCLUDED THAT "IT IS NOT POSSIBLE AT THIS TIME TO DETERMINE THE DEPTH OF BASEMENT SOIL THAT REQUIRES GREATER DENSITY, NOR TO RELATE THESE FACTORS TO THE TRAFFIC VOLUME OF THE ROADWAY. SUBJECTIVE EVALUATION OF THE CONDITIONS EXISTING AT A SITE PROVIDE THE BEST AVAILABLE BASIS FOR ESTABLISHING THE THICKNESS LIMITS FOR COMPACTION REQUIREMENTS." /BPR/

  • Corporate Authors:

    California Division of Highways

    Bridge Department
    Sacramento, CA  United States  05914

    Bureau of Public Roads /US

    400 7th Street, SW
    Washington, DC  United States  20590
  • Authors:
    • Zube, E
    • Tueller, D O
  • Publication Date: 1969-7

Subject/Index Terms

Filing Info

  • Accession Number: 00230700
  • Record Type: Publication
  • Source Agency: Bureau of Public Roads /US
  • Report/Paper Numbers: Hpr- D-5-23
  • Files: TRIS
  • Created Date: Aug 15 2004 2:21AM