METROPOLITAN TORONTO PATCHES POTHOLES YEAR-ROUND WITH HOT-MIX ASPHALT

Hot-mix asphalt carried in heated trailers behind 14 radio dispatched trucks, effect patching within a few hours of a pavement defect being reported. Each trailer (hot-box) carries 3000 pounds of asphalt which is heated by propane fired flame applied to the bottom of the double-walled insulated box. Details are given of the filling of the trailer and the shovelling out of the box. Provision is made for carrying smoothing irons and tapers (kept heated) under the box. A patching level of service is outlined. Performance standards have been established as an integral part of the maintenance system to assist foremen to plan, organize, direct and control various maintenance activities. Work information from the field is fed back via crew cards. The use of hot mix patches, which was initiated to ensure a high level of service and to minimize disruption of traffic due to mainenance forces occupying roadway, has led to the realization of considerable cost saving.

  • Corporate Authors:

    National Asphalt Pavement Association (NAPA)

    5100 Forbes Boulevard
    Lanham, Maryland  United States  20706
  • Authors:
    • Johnston, T H
  • Publication Date: 1975-9

Media Info

  • Features: Figures;
  • Pagination: p. 4-7
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00128660
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Apr 21 1976 12:00AM