INFLUENCE OF ASPHALT TYPE ON PAVEMENT SETTING RATE

THE EFFECTS OF A NUMBER OF DIFFERENT TYPES AND GRADES OF PAVING ASPHALT ON MIX SETTING CHARACTERISTICS ARE EXAMINED. THESE ASPHALTS ARE USED IN GOOD AS WELL AS CRITICAL MIXES MADE WITH BOTH ROUNDED GRAVEL AND CRUSHED GRANITE AT LOW AND HIGH FILLER LEVELS. ALL OF THESE VARIABLES ARE EXAMINED UNDER DIFFERENT KINDS AND DEGREES OF FULL-SCALE ROLLING. EXTENSIVE PHYSICAL TESTS AND ANALYSES ARE SHOWN FOR THE ORIGINAL ASPHALTS USED. INSPECTIONS ARE ALSO GIVEN ON THE ASPHALTS RECOVERED FROM THE EXPERIMENTAL PAVEMENTS AS WELL AS ON THIN FILM OVEN RESIDUES. A RELATION IS SHOWN BETWEEN THE VISCOSITY AND THE TEMPERATURE SUSCEPTIBILITY OF RESIDUES AFTER THE THIN FILM OVEN TEST WITH PAVEMENT TOUGHNESS. IT IS PROPOSED THAT SETTING, TO THE EXTENT CONTROLLED BY ASPHALT QUALITY, IS DEPENDENT ON THE INTERACTION OF THE ASPHALT COMPONENTS WITH THE DIFFERENT TYPES OF MINERAL SURFACE IN THE MIX. THESE QUALITIES DO NOT APPEAR TO BE WELL DEFINED BY ANY OF THE ASPHALT PROPERTIES REPORTED. THE VARIED RESPONSE BY ASPHALTS TO TYPE AND AMOUNT OF MINERAL SURFACE SUGGESTS THAT A CONCRETE RESEARCH EFFORT IS REQUIRED TO UNDERSTAND AND CONTROL THE INTERACTION OF THE ASPHALT COMPONENTS WITH MINERAL SURFACES. /AUTHOR/

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/hrbbulletin/333/333-002.pdf
• Supplemental Notes:
  • Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved.
• Authors:
  • Schmidt, R J
  • Santucci, L E
• Conference:
  • 41st Annual Meeting of the Highway Research Board
  • Location: Washington DC, United States
  • Date: 1962-1-8 to 1962-1-12
• Publication Date: 1962

Media Info

• Media Type: Digital/other
• Features: Figures; References; Tables;
• Pagination: pp 10-19
• Monograph Title: Factors influencing setting and hardening of asphalt in bituminous pavements
• Serial:
  • Highway Research Board Bulletin
  • Issue Number: 333
  • Publisher: Highway Research Board

Subject/Index Terms

• TRT Terms: Aggregate gradation; Asphalt; Bituminous mixtures; Concrete curing; Grain shape (Geology); Minerals; Oven tests; Surfaces; Temperature; Thin films; Viscosity
• Uncontrolled Terms: Thin film oven test
• Subject Areas: Highways; Materials;

Filing Info

• Accession Number: 00210834
• Record Type: Publication
• Files: TRIS, TRB, ATRI
• Created Date: Jul 29 1994 12:00AM