POLYMER GRID REINFORCEMENTS OF ASPHALT PAVEMENTS. SINO-BRITISH HIGHWAYS AND URBAN TRAFFIC CONFERENCE. PAPERS PRESENTED AT THE CONFERENCE HELD IN BEIJING 17TH-22ND NOVEMBER 1986

This paper describes several ways in which polymer grid reinforcements can improve the quality and increase the life of asphalt pavements. Recent developments in geosynthetics have led to the production of a polymer geogrid, Tensar AR1, which can be used successfully in this way. The properties and installation of Tensar AR1 grid are outlined. Asphalt reinforced with tensar ar1 has improved resistance to permanent deformation, fatigue cracking, and reflection cracking; alternatively, pavement thicknesses may be reduced when reinforcement is used. The lifetime of a reinforced pavement may be increased ten times with respect to fatigue cracking and three times with respect to reflection cracking and rutting. Grid reinforcement, located at the base of an overlay, will prevent the propagation of reflective cracks, greatly increasing the life of the overlay. Many site case histories have demonstrated the success of the installation procedure for tensar grids, and monitoring to date has indicated that performance agrees with expectations. (TRRL)

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  • Corporate Authors:

    INSTITUTION OF HIGHWAYS & TRANSPORTATION

    6 ENDSLEIGH STREET
    LONDON,   United Kingdom  WC1H 0DZ
  • Authors:
    • Hughes, DAB
    • Gilchrist, AJF
    • BROWN, S F
  • Publication Date: 1986

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Filing Info

  • Accession Number: 00493113
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD, TRIS
  • Created Date: May 31 1990 12:00AM