RESEARCH STUDIES AND PROCEDURES

PROMISING LINES FOR RESEARCH STUDIES ON THE HARDENING OF PAYING ASPHALTS ARE DISCUSSED. PROMISING RECOMMENDATIONS ARE: (1) FURTHER ELUCIDATION OF CHEMICAL MECHANISMS SINCE RECENT ADVANCES IN HIGH MASS SPECTROMETRY, INFRARED SPECTROSCOPY AND CHROMATOGRAPHY COULD BE UTILIZED TO DETERMINE THE SPECIFIC NATURE OF OXIDATION REACTIONS WHICH LEAD TO HARDENING, (2) EFFECT OF ENVIRONMENT ON HARDENING RATE USING MICROFILM TECHNIQUES TO ACCELERATE THE ACCUMULATION OF QUANTITATIVE INFORMATION, AND (3) IMPROVED TECHNIQUES FOR MEASURING 'STIFFNESS' AT LOW TEMPERATURES AND SHORT LOADING TIMES BY DEVELOPMENT OF MEASURING TECHNIQUES OF THE STRESS-STRAIN RELATIONSHIP OF MICRO-SAMPLES OF ASPHALTS IN THE PURELY ELASTIC AND VISCO-ELASTIC REGIONS.

• Supplemental Notes:
  • Vol 27, pp 176-183
• Authors:
  • Fink, D F
• Conference:
  • Assoc Asphalt Paving Technol Proc
• Publication Date: 1958

Subject/Index Terms

• TRT Terms: Asphalt; Bituminous mixtures; Chemical properties; Chromatography; Concrete hardening; Deformation curve; Elasticity (Mechanics); Environmental impacts; Hardness; Infrared spectroscopy; Low temperature tests; Mass spectrometers; Measurement; Microforms; Oxidation; Research; Stiffness tests; Viscoelasticity
• Old TRIS Terms: Microfilms
• Subject Areas: Environment; Highways; Materials; Research;

Filing Info

• Accession Number: 00210848
• Record Type: Publication
• Files: TRIS
• Created Date: May 6 1994 12:00AM