A CHEMICAL COMPOSITION STUDY OF ASPHALT

THE CHEMICAL COMPOSITION OF ASPHALTS USED ON PAVING PROJECTS IN ARKANSAS WAS EXAMINED FOR A PERIOD OF FOUR YEARS. A MODIFIED CORBETT-SWARBRICK METHOD OF CHROMATOGRAPHIC ANALYSIS WAS USED TO DETERMINE THE COMPOSITIONS OF THE ASPHALTS. THE ASPHALTS WITH INITIAL CHEMICAL COMPOSITION IN THE RANGES AS SHOWN BELOW WERE FOUND TO PROVIDE AT LEAST FOUR YEARS OF GOOD ROAD SERVICE. THE FRACTION AND THE WEIGHT PERCENTAGES ARE AS FOLLOWS: PARAFFIN AND NAPTHENES, 11 TO 20%; LIGHT AROMATICS, 20 TO 34%; HEAVY AROMATICS #1, 23 TO 30%; HEAVY AROMATICS #2, 5 TO 10%; AND ASPHALTENES, 12 TO 20%. THE ABOVE DATA WAS BASED ON A CHROMATOGRAPHIC SEPARATION USING FOROCEL ACTIVATED AT 733 F FOR TWO HOURS. /AUTHOR/

  • Corporate Authors:

    Arkansas State Highway Department

    Little Rock, AR  United States  72203

    Bureau of Public Roads /US

    400 7th Street, SW
    Washington, DC  United States  20590
  • Authors:
    • Majors, A B
    • Couper, J R
  • Publication Date: 0

Subject/Index Terms

Filing Info

  • Accession Number: 00210430
  • Record Type: Publication
  • Source Agency: Bureau of Public Roads /US
  • Report/Paper Numbers: K457-hrc-21
  • Files: TRIS, STATEDOT
  • Created Date: May 13 1970 12:00AM