REVIEW OF A BITUMINOUS CONCRETE STATISTICAL SPECIFICATION

THE STATISTICALLY ORIENTED SPECIFICATION FOR BITUMINOUS CONCRETE PRODUCTION WAS USED AS A BASIS FOR ACCEPTANCE OF MORE THAN ONE MILLION TONS OF BITUMINOUS CONCRETE IN 1970. DATA OBTAINED FROM THIS SYSTEM WERE ANALYZED FOR GRADTION AND ASPHALT CONTENT FOR SUCH COMPARISONS AS HOW WELL THE PRODUCTION AVERAGE MATCHED THE STATED JOB MIX FORMULA; HOW WELL THE VARIABILITY OF LOT MEANS MATCHED THE VARIABILITY MEASURE THE LIMITS WERE BASED ON; AND HOW WELL THE RANGE METHOD OF PREDICTING THE STANDARD DEVIATION MATCHED THE ACTUAL STANDARD DEVIATION. IT WAS FOUND THAT THE 1970 BITUMINOUS CONCRETE PRODUCTION WAS CONSISTENT WITH THAT OF 1967, ON WHICH THE SPECIFICATION WAS BASED; THAT THE RANGE METHOD CAN PREDICT STANDARD DEVIATIONS ACCURATELY AND CAN BE USED ON A LOT BY LOT BASIS; AND THAT, ALTHOUGH THE PRESENT TOLERANCES ARE WORKING WELL, THERE ARE SOME AREAS WHERE IMPROVEMENTS ARE POSSIBLE. /AUTHOR/

  • Corporate Authors:

    Virginia Highway Research Council

    Charlottesville, VA  United States 

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590

    Virginia Department of Highways

    Richmond, VA  United States  23219
  • Authors:
    • Runkle, S N
    • Hughes, C S
  • Publication Date: 1971

Subject/Index Terms

Filing Info

  • Accession Number: 00210464
  • Record Type: Publication
  • Source Agency: Federal Highway Administration
  • Report/Paper Numbers: HPR 0697
  • Files: TRIS, USDOT, STATEDOT
  • Created Date: Jan 31 1972 12:00AM