LONG-TERM BEHAVIOUR OF GEOTEXTILES INSTALLED IN ROAD CONSTRUCTIONS IN FINLAND SINCE 1973

Samples of geotextiles buried over the previous 7 years were recovered from 22 road sites in the autumn of 1979 in order to determine their long-term performance and structural stability. Tests performed were 50 mm strip tensile test, CBR penetration test and fall-cone test. For purposes of comparison, information concerning original strength properties was obtained from technical journals and sales literature. Non-woven geotextiles, especially melt-bonded products, exhibited a remarkable loss in bond strength. Similar conclusions cannot be drawn concerning CBR penetration strength or fall cone test hole diameters, due to lack of published original values. All geotextiles were stated by the sites to have performed their intended functions of separation and filtration. Discrepancies between test results and published data may be due to method of installation, the effect of soil or the recovery process. It is probable that service stresses are not critical, and it is the stresses during installation and early stages of construction which should determine what technical standard these geotextiles must conform to. (TRRL)

  • Availability:
  • Corporate Authors:

    Svenska Vag-Och Vattenbyggaren Riksforband

    Regeringsgaten 98
    S-11139 Stockholm,   Sweden 
  • Authors:
    • RATHMAYER, H
  • Publication Date: 1980

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 33-36
  • Serial:
    • Vag-Och Vattenbyggaren
    • Issue Number: 7/8
    • Publisher: Svenska Vag-Och Vattenbyggaren Riksforband
    • ISSN: 0042-2177

Subject/Index Terms

Filing Info

  • Accession Number: 00331457
  • Record Type: Publication
  • Source Agency: Swedish National Road and Transport Research Institute (VTI)
  • Files: ITRD, TRIS
  • Created Date: Oct 28 1981 12:00AM