HIGHWAY MATERIALS AS AGGREGATE-BINDER COMPOSITES

For many years engineers and scientists in geology, soil mechanics, and paving technology have contributed their efforts to improve the quality and economy of materials used in highway construction. Yet there has been a tendency to neglect the fact that the materials these specialists study possess a common denominator: All are aggregate-matrix composites. This paper provides a tentative classification of the materials involved in these 3 fields to support the claim that they can be organized by the systems approach. Unfilled binders, such as clay and asphalt cement, occur at one extreme of the composite spectrum; unbound fillers, such as clean sand and rock base, occur at the other. Examples are cited from particulate, viscoelastic, and graphic models that have interdisciplinary acceptance in displaying the rheological behavior of highway materials. In education, it is not enough that the student be taught how much different one conventional paving material is from another. More use should be made of those phenomenological tools and physical testing procedures that will enable the student to use the diverse combinations of fillers and binders being created to meet pressing economic and ecological needs.

Media Info

  • Media Type: Print
  • Features: Figures; References; Tables;
  • Pagination: pp 124-131
  • Monograph Title: Characteristics of and factors influencing bituminous materials and mixtures
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00095574
  • Record Type: Publication
  • ISBN: 0309023599
  • Report/Paper Numbers: #517
  • Files: TRIS, TRB
  • Created Date: Jul 2 1975 12:00AM