THE EFFECT OF END-RESULT SPECIFICATIONS ON BRIDGE DECK WATERPROOFING IN ONTARIO. PROCEEDINGS OF THE THIRTY-FOURTH ANNUAL CONFERENCE OF THE CANADIAN TECHNICAL ASPHALT ASSOCIATION, HALIFAX, NOVA SCOTIA, 1989

The use of a form-in-place membrane of hot-poured rubberized asphalt has been the almost exclusive method of bridge deck waterproofing in Ontario since 1972. Poor workmanship and inspection resulted in several sub-standard waterproofing projects. In 1983 the Ontario Ministry of Transportation introduced an interim formal acceptance plan for membrane thickness based on random sampling of lots and sub-lots. Data gathered under this interim plan was analyzed and developed into a full statistical end-result specification, supplemented in 1987 by a material quality component. This paper presents data that demonstrates the impact end result specifications have had on membrane thickness and quality. It is concluded that end result specifications have had and are continuing to have a significant impact on improving bridge deck waterproofing in Ontario. For the covering abstract of the conference see IRRD 807386.

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  • Corporate Authors:

    Multiscience Publications Incorporated

    555 Legendre E, Suite 20
    Montreal, PQ  Canada 
  • Publication Date: 1989

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Filing Info

  • Accession Number: 00498275
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • ISBN: 0-921-317-33-6
  • Files: ITRD, TRIS
  • Created Date: Sep 30 1990 12:00AM