The renewal of bituminous pavements was carried out in the last 2 years by the recycling method by the firm of Schoelkopf, Filderstadt near Stuttgart. It is an economical alternative to the known possibilities (planning or peeling of the damaged wearing course and placing a new one). A finisher made by Voegele, Mannheim is used and a wearing course reforming machine designed by Schoelkopf. Experience showed that there are no shortcomings, only considerable financial savings. The composition of the bituminous course must be checked in detail, and the material must be analysed to establish how far it can be re-used. The whole surface is first made plastic by infrared heat to 170-180 degree C, the surface is then ripped off to a depth of 2.5 to 4 cm depending on wear, and finally the loose material is spread out to a uniform thickness. Any missing quantity of rolled asphalt is placed immediately afterwards with a finisher; the demand for new material 0/11 is usually 40 kg/sq M. One may differentiate between 4 basic cases of damage. Repair work will depend on the type of damage. A report commissioned by the road authorities of Trier produced positive results on the technological properties of the mixture before and after treatment by the recycling method. A test report by the Otto-Graf-Institute of the University of Stuttgart has come to the same conclusions. Finally there is a report on average costs of about 25 cases of the aba Frankfurt from 1975 to 1977. (TRRL)

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  • Corporate Authors:


    Carl-Bertelsmann Strasse 270, Postfach 5555
    D-4830 Guetersloh,   Germany 
  • Authors:
    • Mosch, K
  • Publication Date: 1978-3


  • German

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Filing Info

  • Accession Number: 00315275
  • Record Type: Publication
  • Source Agency: Bundesanstalt für Straßenwesen (BASt)
  • Files: ITRD, TRIS
  • Created Date: Jun 12 1981 12:00AM