The Palojarvi-Olkkala test road was constructed in 1973 in order to test different non-traditional road structures in Finnish conditions on frost susceptible soil. The test road consists of ten cement concrete sections, seven asphalt concrete sections having cement treated base or sub-base, six full-depth asphalts and four conventional structures as a reference. In three test sections a thermal insulation layer was used. The total length of the test road is 3 kms. The test road is situated in southern Finland where the average freezing index is 15000 h deg C. Average daily traffic is 5000 vehicles. The investigations, performed to monitor the properties and condition of the road and changes in them, have comprised observations of frost action and settlements, follow-up of the properties and damages of the pavement, deflection measurements with Benkelman beam and Lacroix deflectometer and plate bearing tests. The stresses and deformations in different test constructions were computed with a multi-layer program and on the basis of these and the fatigue criteria the age of each structure was estimated. (TRRL)

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  • Corporate Authors:

    Valtion Teknillinen Tutkimuskenskus

    Lampomiehenkuja 2A
    Espoo 15,   Finland 
  • Authors:
    • Hyttinen, M
    • Kankare, E
    • Huhtala, M
    • Lampinen
  • Publication Date: 1980-3


  • Finnish

Media Info

  • Features: Figures; References; Tables;
  • Pagination: 138 p.
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00322137
  • Record Type: Publication
  • Source Agency: VTT Technical Research Centre of Finland
  • ISBN: 951-38-0938-2
  • Report/Paper Numbers: Monograph
  • Files: ITRD, TRIS
  • Created Date: May 21 1981 12:00AM