TEMPERATURE - FLOW FUNCTIONS FOR CERTAIN ASPHALT CEMENTS

ASPHALT CEMENTS ARE SUBJECTED TO ENVIRONMENTS RANGING FROM SUBZERO TO ABOVE AMBIENT TEMPERATURES. IN SUCH EXTREME MIXING AND SERVICE CONDITIONS, THE PERFORMANCE OF THE ROAD SURFACE MAY BE CONTROLLED BY THE RESPONSE OF THE BITUMINOUS BINDER TO INDUCED TEMPERATURE GRADIENTS. TO ANALYZE THE ANTICIPATED BEHAVIOR OF THE BITUMINOUS BINDER CAUSED BY TEMPERATURE VARIATIONS, PARAMETERS DESCRIBING ITS RHEOLOGICAL RESPONSE MUST BE DETERMINED. AMONG THE PARAMETERS OF GREAT THEORETICAL SIGNIFICANCE ARE TEMPERATURES AT WHICH FLOW REGIMES ARE GREATLY ALTERED. THE METHOD OF REDUCED VARIABLES WAS APPLIED TO VISCOSITY- RATE OF SHEAR DATA OBTAINED AT DIFFERENT TEMPERATURES FOR EIGHT AC-8 ASPHALT CEMENTS /85-100 PENETRATION/ HAVING DIFFERENT PHYSICAL AND CHEMICAL PROPERTIES. CLOSE SIMILARITY BETWEEN THE BEHAVIOR OF ASPHALTS AND THE BEHAVIOR OF VISCO-ELASTIC POLYMERS SUGGESTS THAT THE GLASS TRANSITION TEMPERATURE MAY BE AN IMPORTANT CHARACTERISTIC PARAMETER FOR ASPHALTS. EXPLORATORY RESEARCH IN DETERMINING GLASS TRANSITION TEMPERATURE OF EIGHT ASPHALT CEMENTS WAS MADE USING THE PENETROMETER METHOD.

Media Info

  • Media Type: Print
  • Features: Figures; References; Tables;
  • Pagination: pp 63-74
  • Monograph Title: Bituminous materials
  • Serial:

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Filing Info

  • Accession Number: 00210310
  • Record Type: Publication
  • Files: TRIS, TRB
  • Created Date: Nov 7 1994 12:00AM