SOME ASPECTS OF THE RHEOLOGICAL BEHAVIOR OF BITUMINOUS MIXES

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

Media Info

  • Media Type: Print
  • Features: Figures; References; Tables;
  • Pagination: pp 12-27
  • Monograph Title: Bituminous materials and mixes
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00211433
  • Record Type: Publication
  • Files: TRIS, TRB
  • Created Date: Sep 29 1994 12:00AM