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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: Rehabilitation of Eisenhower Lock
Author(s): V. Novokshchenov
Publication: Special Publication
Appears on pages(s): 147-168
Keywords: concrete durability; concretes; culverts; deterioration; freeze-thaw durability; inspection; locks (waterways); natural cement; quality control; renovation; repairs; Construction
Abstract:Describes deterioration of concrete in the chambers and the culverts of Eisenhower Lock that were observed soon after the lock was completed in 1958. Investigators from the U.S. Army Engineer Waterways Experiment Station postulated that the most probable cause of deterioration was pressure created by freezing water in critically saturated concrete that was not mature enough to withstand the pressure. Slow strength gain of the concrete was believed due to the use of natural cement. The investigation conducted prior to repairs performed at Eisenhower Lock in the winter of 1985-86 suggested that poor durability of the in-place concrete may have been caused to a large extent by inadequate control over concrete operations during construction works. Therefore, all precautions have been taken to assure that the newly placed concrete will perform adequately under severe service conditions. The only operation that caused concern was adding hot water at the project site to the dry concrete mix containing portland cement.
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