NEW MATERIALS AGAINST FORMATION OF ICE IN TUNNELS

NYE MATERIALER MOT ISDANNELSE I TUNNELER

NSB has tried several methods to stop formation of ice in tunnels. The last method that has been tested is inside covering of the tunnel with a material called ETHAFOAM, an extruded polyethylene foam, a material with a very good insulating power. It is water-tight and does not absorb water that would destroy the insulation. Moreover the sheets can be formed according to the form of the profile. The sheets are supplied in a width of 0.6m and in a length of 2.75m. The thickness is 30, 50 or 70 mm. The sheets are jointed together with a so-called HOTMELT glue type, a thermoplastic material. The method will also be tested at SJ.

  • Corporate Authors:

    Norwegian State Railways

    Storgaten 33
    Oslo 1,   Norway 
  • Publication Date: 1979

Language

  • Norwegian

Media Info

  • Features: Photos;
  • Pagination: p. 14-16
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00195112
  • Record Type: Publication
  • Source Agency: International Union of Railways
  • Files: TRIS
  • Created Date: Jul 31 1979 12:00AM