The bridges of the freeways south and east of Vancouver, British Columbia, were chosen as a sample of concrete bridge decks in the area. They are of similar ages and quality of supply of ready-mixed concrete and subject to the same weather, salting, and traffic conditions. They have the following types of decks: monolithic, monolithic recapped, two layer on precast box beams and two layer on cast-in-place concrete; the tow-layer decks used either cement grout or two-part epoxy as bonding agents. The use of site-mixed versus plant-mixed concrete is related to the performance of the bridge decks. Six observations are made why two-layer decks are more satisfactory than monolithic decks, and 16 recommendations for construction of two-layer decks are given. It is concluded that (a) two-layer decks are more durable than monolithic concrete decks and guarantee a minimum coverage of the steel, (b) the placement of the overlay requires rigid quality control of the site-mixed concrete, and (c) application of the two-part epoxy bonding agent requires constant technical attention. /Author/

Media Info

  • Media Type: Print
  • Features: Figures; Photos; References;
  • Pagination: pp 6-10
  • Monograph Title: Concrete, aggregates, marking materials, corrosion, and joint seals
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00183523
  • Record Type: Publication
  • ISBN: 0309026806
  • Files: TRIS, TRB
  • Created Date: Dec 12 1978 12:00AM