EXPERIENCE WITH ASPIPHALT

The increased wear of asphaltic concrete and gussasphalt during the winter months, caused by the action of de-icing salts and studded tires, has led to the creation of a new type of asphalt surfacing called "Aspiphalt". Studded tires mainly affect the mortar in the surfacing, causing a loss of mortar and eventual loosening of the chippings; this process can be prevented by a denser structure, higher bitumen content, and a higher proportion of chippings; these three criteria formed the basis for the development of aspiphalt. With a proportion of chippings of about 70 percent, the binder content of 7.0 - 7.5 percent seems too high. The fact that this amount of binder can be used in the mixture without any adverse consequences is due to the addition of a polymer which has a favorable effect on the flow properties and adhesion strength of the bitumen. A number of practical tests have confirmed the favorable behavior of aspiphalt, particularly its skidding resistance. /TRRL/

  • Corporate Authors:

    Teerbau GmbH

    Ruettenscheider Strasse 66
    D-4300 Essen,   Germany 
  • Authors:
    • Deters, R
    • Potschka, V
  • Publication Date: 1971

Language

  • German

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00081923
  • Record Type: Publication
  • Source Agency: Bundesanstalt für Straßenwesen (BASt)
  • Files: ITRD, TRIS
  • Created Date: Aug 13 1975 12:00AM