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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Repairs to International Control Dam-Niagara Falls
Author(s): N. P. Bada
Publication: Special Publication
Appears on pages(s): 609-636
Keywords: bond (concrete to concrete); compressive strength;
concrete construction; concrete dams; epoxy resins; mix
proportioning; plasticizers; repairs; scarifying
Abstract:Several of the bridge non air-entrained concrete bearing seats on the International Control Dam have concrete deterioration from the application of de-icing salts. A 410 tonne beam and deck slab assembly was raised by twelve hydraulic lift climbing jacks assembled to a single span Bailey Bridge Structure. The concrete repair consisted of removing the deteriorated concrete, application of an epoxy bonder, wood forming, and placing of good quality concrete. The 410 tonne beam and deck slab was lowered onto new elastomeric bearing pads to its original location. The paper details the construction procedures and methods of repair to concrete in Spans 2 and 4.
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