The author points out that the formation of corrugations in fine asphaltic concrete surfacings, caused by stresses induced by the braking and acceleration of vehicles, depends to a large extent on the quality of the wearing course, and in particular on the stiffness of the bituminous mixture used. A review of current Austrian specifications indicates that the requirements for stiffness are too low. Measures for increasing the stiffness are considered; these include the use of harder types of bitumen, increasing the proportion of coarse chippings and broken aggregate, and compaction to a residual voids content of about 4 percent of the volume. /TRRL/

  • Corporate Authors:

    Gesellschaft fuer Landeskultur

    Bremen,   Germany 
  • Authors:
    • Schantora, E
  • Publication Date: 1971

Media Info

  • Features: Figures;
  • Pagination: 5 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00081927
  • Record Type: Publication
  • Source Agency: Bundesanstalt für Straßenwesen (BASt)
  • Files: ITRD, TRIS
  • Created Date: Aug 13 1975 12:00AM