EFFECTS OF GEOMETRIC PROPERTIES OF GRIDS ON THE OPERATING MECHANISMS OF REINFORCED ASPHALT PAVEMENTS

The notion of reinforcing asphalt pavements has existed for many years. The advent of a new generation of high strength polymer grids in the late 1970's indicated that reinforcement could be a viable option under certain circumstances. Potential benefits include reduction in rutting, cracking, and pavement thickness, and extension of pavement life. The effectiveness of reinforced pavements depends on the interaction between reinforcement and the asphalt mix. Such interaction is provided by a number of mechanisms including interlock, bond, confinement and membrane effects. The extent to which a mechanism dominates the operation of a given reinforcement depends on the geometry, strength and the elastic properties of the grid involved. This paper shows the effects of various geometric properties of the reinforcements on the effectiveness of grids through the mechanisms under which they operate. The test results showed that the interlock operating mechanism is governed mainly by the grid opening size and the thickness of strand. The bond operating mechanism is governed mainly by the grid surface area. for the covering abstract of this Conference see IRRD abstract number 807982. (A)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0921317425
• Corporate Authors:

  POLYSCIENCE PUBLICATIONS INC.

  44 SEIZE ARPENTS, P.O. BOX 148
  MORIN HEIGHTS, QUEBEC  Canada  J0R 1H0
• Authors:
  • Gervais, M
  • Hozayen, H
  • Abd El Halim, A O
  • Haas, R
• Conference:
  • PROCEEDINGS OF THE THIRTY-SEVENTH ANNUAL CONFERENCE OF CANADIAN TECHNICAL ASPHALT ASSOCIATION, HELD NOVEMBER 1992, VICTORIA, BRITISH COLUMBIA
• Publication Date: 1992

Language

• English

Media Info

• Features: References;
• Pagination: p. 29-46

Subject/Index Terms

• TRT Terms: Bituminous mixtures; Cartographic grids; Conferences; Flexible pavements; Grids (Transmission lines); Pavements; Polymerization; Strength of materials; Structural strengthening
• ITRD Terms: 4967: Bituminous mixture; 8525: Conference; 2944: Flexible pavement; 4094: Grid; 7481: Polymerization; 3096: Strengthening (pavement)
• Subject Areas: Highways; Pavements;

Filing Info

• Accession Number: 00635683
• Record Type: Publication
• Source Agency: Transportation Association of Canada (TAC)
• ISBN: 0-921317-42-5
• Files: ITRD
• Created Date: Sep 24 1993 12:00AM