THERMOVISCOELASTIC CHARACTERIZATION OF TEMPERATURE ABUSED FLEXIBLE PAVEMENT

AN INVESTIGATION WAS MADE TO OBTAIN THE VARIATION IN TRENDS OF THE THERMOVISCOELASTIC PROPERTIES BETWEEN A REGULAR ASPHALTIC CONCRETE MIXTURE AND A TEMPERATURE ABUSED MIXTURE. THE SPECIMENS WERE TESTED IN UNIAXIAL TENSION AND UNIAXIAL COMPRESSION AT CONSTANT STRAIN RATES VARIED OVER 5 DECADES AND FOR TEMPERATURES BETWEEN -50 DEGREES AND 150 DEGREES F. THE ULTIMATE STRESS VARIED 2 ORDERS OF MAGNITUDE WHILE THE ULTIMATE STRAIN VARIED BY A FACTOR OF ABOUT 3 FOR THE GIVEN EXTREMES OF TEST TEMPERATURE AND STRAIN RATES INVESTIGATED. THE FOUR FUNDAMENTAL THERMOVISCOELASTIC PROPERTIES FOR EACH SET OF TESTS WERE SUMMARIZED ON A SINGLE GRAPH. SMITH FAILURE ENVELOPES SHOWED THAT THE MAXIMUM ULTIMATE STRESS INCREASED AND THE MAXIMUM ULTIMATE STRAIN DECREASED WITH INCRESED MIX TEMPERATURES. /BPR/

• Corporate Authors:

  Texas Transportation Institute

  Texas A&M University System, 1600 E Lamar Boulevard
  Arlington, TX  United States  76011

  Texas State Department of Highways & Public Transp

  11th and Brazos Streets
  Austin, TX  United States  78701

  Bureau of Public Roads /US

  400 7th Street, SW
  Washington, DC  United States  20590
• Authors:
  • Bynum, D
  • Traxler, R N
• Publication Date: 0

Subject/Index Terms

• TRT Terms: Asphalt concrete; Compression tests; Flexible pavements; Graphics; Mixtures; Properties of materials; Strain (Mechanics); Stresses; Temperature; Tension tests; Thermal properties; Viscoelasticity
• Uncontrolled Terms: Graphical analysis
• Old TRIS Terms: Compressive strength tests; Strains
• Subject Areas: Highways; Materials; Pavements;

Filing Info

• Accession Number: 00206395
• Record Type: Publication
• Source Agency: Bureau of Public Roads /US
• Files: TRIS, STATEDOT
• Created Date: Apr 20 1970 12:00AM