DETERMINATION OF THE WAX CONTENT OF BITUMENS

PUBLICATIONS OF PARAFFIN WAX IN BITUMEN. ITS EFFECTS ON THE QUALITY OF THE BITUMEN, AND THE ESTIMATION OF ITS AMOUNT HAVE APPEARED OVER THE PAST 60 YEARS. ALTHOUGH THE PERFORMANCE OF A BITUMEN CANNOT BE RELATED DIRECTLY TO ITS WAX CONTENT, MANY EUROPEAN COUNTRIES STILL SPECIFY A MAXIMUM WAX CONTENT FOR ROAD BITUMENS. THE DETERMENATION OF THE WAX CONTENT IS MOSTLY BASED ON THE DIN 1995 STANDARD METHOD, WHICH FOR MORE THAN 30 YEARS HAS BEEN KNOWN TO YIELD UNREALISTIC FIGURES. A SURVEY OF METHODS USED FOR THE DETERMINATION OF WAX IN BITUMEN IS GIVEN. THE MERITS AND DEMERITS OF THE VARIOUS PRINCIPLES ARE DISCUSSED. A NEW METHOD HAS BEEN DEVELOPED. IT HAS BEEN USED FOR A NUMBER OF YEARS ALREADY AND HAS PROVED TO GIVE RELIABLE RESULTS. IT IS DEMONSTRATED THAT A ROUGH CORRELATION HAS BEEN FOUND BETWEEN THE RESULTS OBTAINED BY THE NEW AND BY THE DIN METHOD. THE LATER GIVES ONLY ONE HALF TO ONE THIRD OF THE TOTAL AMOUNT OF WAX PRESENT IN A BITUMEN. /A/RRL/

  • Supplemental Notes:
    • Vol 54, No 536, PP 232-240, 6 FIG, 3 TAB, 12 REF
  • Corporate Authors:

    N/A

    ,   United States 
  • Authors:
    • Krom, C J
  • Publication Date: 1968-8

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Filing Info

  • Accession Number: 00211242
  • Record Type: Publication
  • Source Agency: Road Research Laboratory /UK
  • Files: TRIS
  • Created Date: Oct 26 2003 12:00AM