USE OF SPRAY COATS IN ROAD CONSTRUCTION

UEBER DIE VERWENDUNG VON ANSPRITZMITTELN IM STRASSENBAU

The adhesion of layers of a flexible pavement is a prerequisite for long life. The mechanical behaviour of non-adhesive and adhesive layers under loading is illustrated. Using the Shell Company BISAR program it was possible to make relative predictions regarding the lifespan of pavements with and without adhesion of the individual layers. The selected four cross sections from construction class I and construction class III, the number of load reversals and the relative lifespans are assembled in tabular form. Evaluation criteria used were the extension at the underside of the layers and the pressure on the subsoil. Alternatives to the adhesion of layers were: no joints glued/both joints glued, upper joint without adhesive/lower joint without adhesive, lower joint without/upper joint without adhesive, lower joint without/upper joint with adhesive. The general result was that the lifespan without adhesion was greatly reduced; the expenditure on adhesives is insignificant in relation to the lengthening of the lifespan. Contact adhesives and the composition U 60 k are the ones used nowadays. Dirt, dampness and loose substances on the surface must be avoided. (TRRL)

  • Availability:
  • Corporate Authors:

    Kirschbaum Verlag

    Siegfriedstrasse 28
    Bonn,   Germany  D-53179
  • Authors:
    • Metelmann, P
    • Beecken, G
  • Publication Date: 1979-5

Language

  • German

Media Info

  • Features: Figures; Tables;
  • Pagination: p. 219-223
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00334593
  • Record Type: Publication
  • Source Agency: Bundesanstalt für Straßenwesen (BASt)
  • Files: ITRD, TRIS
  • Created Date: Oct 28 1981 12:00AM