SPECIAL AIR-BLOWN BITUMEN IN ASPHALT ROAD CONSTRUCTION

SPEZIELL GEBLASENE BITUMEN IM ASPHALTSTRASSENBAU

The acknowledged behaviour of bituminous slabs (tendency to deform during summer and possible wear under traffic loading) had led to the use of harder bitumen types and to additives to the bitumen. In the search for further and more economical possibilities for improvement catalytically airblown bitumen came into being as a binder in asphalt road construction which is differentiated from normal bitumen by its considerably lower oil content. In comparison with others it contains a higher adhesion to stone and concrete in addition to much improved durability with age. Laboratory results have confirmed the superiority of blown bitumen (especially catalytically) compared with other binders when considering adhesive behaviour. Similar improvements are indicated by mechanical tests for wear, deformation, Marshall strength and breaking extension at low temperatures. The use of this material requires neither additional investment nor plant or amendments to the mixing plant. /TRRL/

  • Corporate Authors:

    Franz W. Wesel

    Pheinstrasses 219-221, Postfach 1110
    D-7570 Baden-Baden,   Germany 
  • Authors:
    • Schuscha
  • Publication Date: 1976

Language

  • German

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 220-31
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00195229
  • Record Type: Publication
  • Source Agency: Bundesanstalt für Straßenwesen (BASt)
  • Report/Paper Numbers: N5
  • Files: ITRD, TRIS
  • Created Date: Aug 15 1979 12:00AM