EFFECT OF THE QUALITY OF THE OIL COMPONENT ON THE THE PROPERTIES OF ASPHALTS /IN RUSSIAN/

ASPHALT SAMPLES WERE PREPARED BY MIXING ASPHALTENES WITH RESINS AND OILS. PRODUCTS OF TREATMENT OF ARLANSK PETROLEUM TAR WITH GASOLINE CONTAINING 70% ASPHALTENES WERE USED AS THE ASPHALTENE COMPONENT. OIL FRACTIONS AND PRODUCTS OF PHENOL REFINING NOT CONTAINING SOLID PARAFFINS, WHICH WERE DERIVED FROM TUIMAZY PETROLEUM, WERE USED AS THE OIL COMPONENT. THE RESINS WERE INTRODUCED PARTLY WITH THE ASPHALTENE FRACTION AND PARTLY WITH THE PRODUCTS OF PHENOL REFINING. MIXTURES WITH HIGH RATIOS (GREATER THAN 2:1) OF ASPHALTENES TO RESINS WERE USED. THE OIL CONTENT VARIED FROM 40 TO 80%. THE SOFTENING TEMPERATURE NEEDLE PENETRATION DEPTH AT 0 AND 25 DEGREES, STRETCHING CAPACITY AT 25 DEGREES, AND TEMPERATURE OF EMBRITTLEMENT (FRAAS) OF ASPHALT SAMPLES IN RELATION TO THE AROMATICITY AND VISCOSITY OF THE OIL COMPONENT WERE STUDIED. WITH INCREASING VISCOSITY OF THE OIL, THE TEMPERATURES OF SOFTENING AND EMBRITTLEMENT OF THE ASPHALT INCREASED AND THE DEPTH OF PENETRATION OF THE NEEDLE INTO IT DECREASED, WHILE THE STRETCHABILITY PASSED THROUGH A MAXIMUM, THE POSITION OF WHICH DEPENDED ON THE COMPOSITION OF THE ASPHALT. WITH DECREASING AROMATICITY OF THE OIL AT A CONSTANT VISCOSITY OF THE LATTER, THE SOLUBILITY OF SOLID COMPONENTS IN THE DISPERSING MEDIUM DECREASED, I.E., THE ASPHALT MICELLES BECAME LARGER AND THE ASPHALT HARDER. AS A RESULT, THE TEMPERATURE OF SOFTENING INCREASED, WHILE THE INDEX OF PENETRATION AND STRETCHING CAPACITY DECREASED. /LCPC(A)/RRL/

  • Supplemental Notes:
    • No 8, pp 181-187
  • Corporate Authors:

    Nauch-issled Inst Pererab Nefti

    ,    
  • Authors:
    • Fryazinov, V V
    • Grudnikov, I B
  • Publication Date: 1968

Subject/Index Terms

Filing Info

  • Accession Number: 00211119
  • Record Type: Publication
  • Source Agency: Road Research Laboratory /UK
  • Files: TRIS
  • Created Date: Jun 29 1971 12:00AM