QUALITY ASSURANCE IN BRIDGE CONSTRUCTION IN CANADA: A STUDY OF INSPECTION AND TESTING PROGRAMS

A study is summarized of inspection times and concrete testing programs on 21 contracts of the Ontario Ministry of Transportation and Communications containing 41 bridges built in 1974. The study assessed the degree of uniformity in the Ministry's work with respect to inspection and field testing programs and compares such programs, where appropriate, with resonnended practices and specification requirements. Data are presented on inspection times for reinforcing steel, formwork and falsework, concrete placement, erection of beams, stressing and grouting of cables, deck waterproofing, and other operations. Test programs on fresh and hardened concrete are discussed. The study notes a wide variation in the effect of inspection on comparable segments of different structures and attributes this partly to the individual inspector's perception of the scope and nature of the required inspection effort. A practical bridge-inspection manual and checklists that will establish uniform standards of inspection and provide the basis to build more accountability into inspection work are required. It is concluded that inspection and testing programs, particularly on critical segments of the bridge structure such as the deck, require substantial improvement. /Author/

Media Info

  • Media Type: Print
  • Features: Figures; Tables;
  • Pagination: pp 42-51
  • Monograph Title: Construction and quality control of pavements and structures
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00184210
  • Record Type: Publication
  • ISBN: 03026814
  • Files: TRIS, TRB
  • Created Date: Dec 29 1978 12:00AM