BEHAVIOR OF ASPHALTS IN THIN-FILM OVEN TEST

REPRESENTATIVE SAMPLES OF THE 60-70, 100-120, AND 120-150 PENETRATION ASPHALTS WERE STUDIED IN THIN-FILM OVEN TESTS. TEST RESULTS JUSTIFIED THE FOLLOWING CONCLUSIONS: (1) THE RELATION OF THE DUCTILITY TO PENETRATION IS THE SAME FOR ALL PENETRATION GRADES REGARDLESS OF THE TEMPERATURE AT WHICH A GIVEN PENETRATION OCCURS FOR ASPHALTS MANUFACTURED BY THE SAME REFINING PROCESS FROM THE SAME BASE PETROLEUM, (2) THE DUCTILITIES OF THE RESIDUES FROM THE THIN-FILM OVEN TEST SHOW A COMMON RELATION TO PENETRATION THAT IS DIFFERENT FROM THE RELATION FOR THE ORIGINAL ASPHALT, (3) A REQUIREMENT THAT THE SAMPLE SHALL HAVE A LOSS IN WEIGHT NOT GREATER THAN ONE PERCENT WHEN HEATED IN AN ONE-EIGHT INCH FILM FOR FIVE HOURS AT 325 F APPEARS TO BE SUITABLE FOR ALL PENETRATION GRADES OF ASPHALT FROM THE 50-60 THROUGH THE 120-150 GRADES, (4) A REQUIREMENT THAT THE RESIDUE FROM THE THIN-FILM OVEN TEST SHALL HAVE A PENETRATION AT 77 F OF AT LEAST FIFTY PERCENT OF THAT OF THE ORIGINAL SAMPLE APPEARS TO BE EQUALLY SUITABLE FOR ALL PENETRATION GRADES OF ASPHALT, AND (5) THE REQUIREMENTS THAT THE RESIDUE FROM THE THIN-FILM OVEN TEST SHALL HAVE A DUCTILITY AT 77 F OF NOT LESS THAN 40 CENTIMETERS FOR THE 50-60 AND 60-70 PENETRATION GRADES, AND NOT LESS THAN 100 CENTIMETERS FOR THE 85-100, 100-120, AND 120-150 PENETRATION GRADES GIVES COMPARABLE RESULTS FOR ALL THESE GRADES.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/1586080
• Supplemental Notes:
  • Vol 24, No 8, PP 220-226
• Authors:
  • Lewis, R H
  • Halstead, W J
• Publication Date: 1946

Media Info

• Serial:
  • Public Roads
  • Publisher: Federal Highway Administration
  • ISSN: 0033-3735
  • Serial URL: https://www.fhwa.dot.gov/publications/publicroads/
• Publication flags:

  Open Access (libre)

Subject/Index Terms

• TRT Terms: Asphalt; Ductility; Oven tests; Pendulum tests; Refining; Samples; Thin films; Waste products (Materials)
• Uncontrolled Terms: Thin film oven test
• Old TRIS Terms: Test results; Weight volume relationships
• Subject Areas: Highways; Materials;

Filing Info

• Accession Number: 00210851
• Record Type: Publication
• Files: TRIS
• Created Date: May 6 1994 12:00AM