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

• Features: Figures; References; Tables;
• Pagination: p. 58-65
• Serial:
  • Teerbau Veroeffentlichungen
  • Issue Number: 18

Subject/Index Terms

• TRT Terms: Bitumen; Bituminous materials; Chippings; Density; Durability; Polymers; Skid resistance; Studded tires; Surface treating; Testing
• Old TRIS Terms: Bituminous surfacing
• ITRD Terms: 4929: Binder content; 4714: Mix design; 4989: Rolled asphalt; 3031: Skid resistance; 1382: Studded tyre; 7460: Synthetic resin; 5293: Wear
• Subject Areas: Highways; Maintenance and Preservation; Materials;

Filing Info

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