RESURFACING OF BITUMINOUS PAVEMENTS

HALVSALING AV ASFALTDEKKER

Extensive use of studded tires had reduced the service life of the surfacing on heavily trafficed roads in Norway to 3- 4 years. The research on surfacing wear problems has therefore been given high priority. The paving mixes used for urban roads contain the highest possible amount of coarse aggregates in order to improve the resistance to wear. These very coarse mixes have to be laid in relatively large thicknesses, about 40 mm, in order to give a satisfactory surfacing. Due to this, the urban roads maintenance expenses are very high and a new, low cost resurfacing method was developed during the period 1968 to 75 by the Norwegian Road Research Laboratory, which is part of the Public Roads Administration. This method is based on the use of large infrared heaters and the laying of a thin overlay while the old surface is still hot and soft. The amount of surfacing material used is just sufficient to fill the ruts, and on the thin parts of this overlay the coarse new material is rolled into the old softened surface without any planing, scraping or other mechanical treatment. This method has been named the Heater Resurfacing Method, and the resurfacing costs are reduced to less than 40% the cost of a traditional resurfacing, and still give the same service life. /Author/

  • Corporate Authors:

    Norwegian Road Research Laboratory

    Gaustadalleen 25, Postboks 8109
    Oslo 3,   Norway 
  • Authors:
    • Thurmann-Moe, T
    • Wold, O R
  • Publication Date: 1978-12

Language

  • Norwegian

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00194296
  • Record Type: Publication
  • Report/Paper Numbers: Report No. 51
  • Files: TRIS
  • Created Date: Jul 11 1979 12:00AM