Research Report 317 Waterproofing of concrete bridge decks

Publication Year

1991

Document Status

Current

Abstract

Describes practices currently used for installing, repairing and renewing waterproofing systems for concrete bridge decks and relates these practices to in-service failures. The investigation was based on survey data, reports from users, laboratory tests, field trials and observations. Poor waterproofing integrity was related to many factors: site procedure, workmanship, weather, installation conditions, asphalt application temperatures, adhesive properties and the performance of the membrane itself. Complex structural detailing, the type and condition of the deck concrete, the composition and compaction of the surfacing and traffic loading were also important contributory factors. Many waterproofing systems certified for use on roads and bridges failed to maintain waterproofing integrity in-service.

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