This short article presents results of a test which investigates the use of geosynthetics as a drainage layer under a concrete slab motorway pavement. The foundation soil forming the subgrade is generally a fine, loamy soil which is erosive. The geotextile used in the layer was Drainatex, a nonwoven, needlepunched polypropylene product, with a draining part and a filter part bonded together in a manufacturing process. Brief details of the mechanical and hydraulic behaviour of the geotextile are provided, as a standard cross section of the concrete carriageway structure. Brief details of the performance of an experimental slip containing the geotextile are also provided. These experiments covered the winter of 1984/85, which was particularly severe. Despite these conditions, no rise in carriageway level was observed. Core samples made down to the draining layer confirmed the satisfactory overall behaviour. For the covering abstract see IRRD 865821.

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  • Corporate Authors:

    BiTech Publishers, Limited

    173-11860 Hammersmith Way
    Richmond, British Columbia V7A 5G1,   Canada 
  • Authors:
    • Bordonado, G
    • BUFFARD, J Y
    • Gourc, J P
  • Publication Date: 1993


  • English

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Filing Info

  • Accession Number: 00668192
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • ISBN: 0-9696924-0-4
  • Files: ITRD
  • Created Date: Nov 2 1994 12:00AM