BITUMINOUS RESEARCH IN NEBRASKA

OF THE 17 RESEARCH PROJECTS REPORTED ONLY ONE HAD ANY COMMENTS OF INTEREST TO THE PRESENT INVESTIGATION. THIS IS PROJECT 11 IN WHICH ROAD OILS FROM FOUR DIFFERENT REFINERIES WERE INVESTIGATED. THE OUTSTANDING DIFFERENCE NOTED WAS THE FORMATION OF A BLACK OXIDIZED CRUST ON THE BITUMINOUS SAND WHERE ONE OIL WAS USED THAT SHOWED EVIDENCE OF MORE CRACKING THAN THE OTHER THREE OILS WHEN TESTED BY THE OLIENSIS SPOT TEST. SAMPLES OF THIS CRUST EXTRACTED WITH 86 DEGREE BAUME NAPHTHA AND THEN WITH CARBON DISULPHIDE SHOWED THAT THE OIL CONTAINED ABOUT 38 PERCENT OF ASPHALTENES COMPARED TO 18 PERCENT IN THE ORIGINAL OIL. THE ASPHALTENE CONTENT OF THE OTHER OILS INCREASED FROM 18 PERCENT IN THE ORIGINAL OIL TO 23 PERCENT IN THE OIL IN THE SURFACE CRUST AFTER TWO YEARS SERVICE. SEVERAL SECTIONS OF THE SURFACING ON THIS PROJECT, CONTAINING THE HIGHLY CRACKED OIL AND WHICH SHOWED SATISFACTORY STABILITY AND BITUMEN CONTENT, HAVE REQUIRED RECONSTRUCTION BECAUSE OF RAVELING AND DISINTEGRATION OF THE OXIDIZED SURFACE CRUST.

  • Corporate Authors:

    Montana Nat Bit Conf Proc

    ,    
  • Authors:
    • Bollen, R E
  • Publication Date: 1937

Media Info

  • Pagination: 94 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00210936
  • Record Type: Publication
  • Source Agency: Highway Research Board Bibliography
  • Files: TRIS
  • Created Date: Jun 3 1994 12:00AM