MIXING TIME STUDY-BITUMINOUS MIXES

THIS STUDY WAS UNDERTAKEN TO DETERMINE THE MINIMUM ACCEPTABLE WET MIXING TIME IN THE PUGMILL WITH A VARIETY OF PLANTS AND MATERIALS. MIXES WERE EVALUATED BY ROSS COUNT, MARSHALL STABILITY AND OTHER TEST METHODS PERFORMED IN THE LABORATORY ON SPECIMENS MOLDED AT PLANT SITE. COROLLARY DATA SUCH AS TEMPERATURE, GRADATION, AND TIME IN SECOND FOR VARIOUS OPERATIONS WERE OBTAINED. THE HIGHEST MARSHALL STABILITY PEAK WAS FOUND TO BE THE MOST RELIABLE METHOD FOR EVALUATING MIXING TIME IN THIS STUDY. IN THIS STUDY, OPTIMUM MIXING TIME HAS BEEN SHOWN TO VARY WITH THE PARTICLE SIZE AND SHAPES OF AGGREGATE FOR A GIVEN ASPHALT CONTENT, MOISTURE CONTENT, TEMPERATURE, AND PUGMILL. HOWEVER, EXPERIENCE AND TESTS OF THE TYPICAL AGGREGATE AND MIXES OF THE STATE MAKE IT POSSIBLE TO ESTABLISH MINIMUM SPECIFICATION MIXING TIME LIMITS FOR EACH MIX TYPE-PLANT TYPE COMBINATION. /BPR/

  • Supplemental Notes:
    • Hpr-1/2/, STATE-65-1
  • Corporate Authors:

    Kansas State Highway Commission

    State Office Building
    Topeka, KS  United States  66612
  • Authors:
    • Baldwin, L K
  • Publication Date: 1967

Subject/Index Terms

Filing Info

  • Accession Number: 00214452
  • Record Type: Publication
  • Source Agency: Bureau of Public Roads /US
  • Files: TRIS
  • Created Date: Jul 5 1994 12:00AM