NEW CONCEPTS FOR JOINTS IN CONCRETE SURFACINGS ON NATIONAL ROADS N1 AND N3

NOUVELLES CONCEPTIONS DES JOINTS DANS LES REVETEMENTS EN BETON DES ROUTES NATIONALES N1 ET N3

After presenting a brief review of traditional joint sawing methods, the author describes a new technique which was used on a large scale on the national roads RN1 and RN3. Neoprene sections were fitted under compression in previously sawn joints. Compared to ordinary sealing materials which have plastic properties, neoprene is a synthetic rubber which resists the chemical and physical aggressive action of fuel, salts, weather, ozone, and infra-red and ultra-violet rays, and has a high mechanical strength. The section is positioned and glued under compression along half its width in the joint opening. The elastic property of the material enables it to go back to its initial shape and to follow the movements of the adjoining slabs thus ensuring complete waterproofing of the joint. The sawing is done with a diamond disc, the opening is chamfered, dried and sanded so as to obtain perfect glueing to the previously roughened section. A neoprene adhesive lubricates the opening facilitating the insertion of the section. This joint does not require any maintenance.

  • Corporate Authors:

    Vereinigung Schweizerische Strassenfachleute (VSS)

    Seefeldstrasse 9
    Zurich,   Switzerland 
  • Authors:
    • Pignolet, M
  • Publication Date: 1968-3

Language

  • French

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00081448
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: Apr 22 1975 12:00AM