TEMPERATURE CORRECTION OF BACKCALCULATED MODULI AND DEFLECTIONS USING LINEAR VISCOELASTICITY AND TIME-TEMPERATURE SUPERPOSITION

New analytical procedures for temperature correction of backcalculated asphalt concrete moduli and surface deflections were developed based on the theory of linear viscoelasticity and the time-temperature superposition principle and verified using falling weight deflectometer data and field temperature measurements. The new correction procedures explicitly utilize the thermorheological properties of the asphalt mixture. The resulting temperature-modulus correction factors depend only on the relaxation modulus and time-temperature shift factor of the mixture. The temperature-deflection correction factor depends on both the material properties and the layer thicknesses of the pavement section. Emphasis has been placed on the analytical description of the mixture's thermoviscoelasticity responsible for temperature effects on mixture modulus and pavement deflection. A mechanistic framework for dealing with temperature correction problems for asphalt pavement has been introduced.

• Record URL:
  • https://doi.org/10.3141/1570-13
• Summary URL:
  • http://scholar.google.com/scholar_lookup?title=TEMPERATURE+CORRECTION+OF+BACKCALCULATED+MODULI+AND+DEFLECTIONS+USING+LINEAR+VISCOELASTICITY+AND+TIME-TEMPERATURE+SUPERPOSITION&author=S.+Park&author=Y.+Kim&publication_year=1997
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0309061539
• Supplemental Notes:
  • This paper appears in Transportation Research Record No. 1570, Pavement Research Issues.
• Corporate Authors:

  Transportation Research Board

  500 Fifth Street, NW
  Washington, DC  United States  20001
• Authors:
  • Park, S W
  • Kim, Y R
• Publication Date: 1997

Language

• English

Media Info

• Features: Figures; References;
• Pagination: p. 108-117
• Serial:
  • Transportation Research Record
  • Issue Number: 1570
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Asphalt concrete; Asphalt pavements; Backcalculation; Deflection; Design; Falling weight deflectometers; Mechanical analysis; Mechanistic design; Modulus of elasticity; Pavements; Temperature; Temperature measurement; Validation; Viscoelasticity
• Uncontrolled Terms: Correction (Mathematics)
• Old TRIS Terms: Pavement deflection; Thermoviscoelasticity; Time-temperature superposition principle
• Subject Areas: Data and Information Technology; Design; Highways; Pavements; I22: Design of Pavements, Railways and Guideways; I23: Properties of Road Surfaces;

Filing Info

• Accession Number: 00741869
• Record Type: Publication
• ISBN: 0309061539
• Files: TRIS, TRB, ATRI
• Created Date: Oct 1 1997 12:00AM