DEVELOPMENT OF A GLOBAL AGING SYSTEM FOR SHORT AND LONG TERM AGING OF ASPHALT CEMENTS (WITH DISCUSSION)

One of the major issues in the development of the performance based specification for asphalt pavements is the binder characterization and its relationship to pavement performance. Among the various factors used for binder characterization, the durability or hardening property of asphalt binder is one of the key factors. This paper describes a series of sequential analytical models that have been developed to predict the aging (viscosity increase) characteristics of conventional "S" type asphalt cements due to both short and long term effects. These models were developed from a statistical analysis of results in a Master Data Base comprised of asphalt consistency results and synthesized from 40 field projects throughout North America and Europe. The data base contained over 2300 separate line entries relating to consistency information obtained at either a given time and/or depth within the asphalt pavement layer from a particular field project.

Language

  • English

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Filing Info

  • Accession Number: 00728542
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Nov 6 1996 12:00AM