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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: Experimental Study on Deterioration and Repairing of a Marine Concrete Structure
Author(s): Y. Takagishi, H. Ichikawa, H. Tabuchi, and A. Moriwake
Publication: Special Publication
Appears on pages(s): 253-276
Keywords: bridge decks; concrete slabs; corrosion; deterioration; epoxy resins; evaluation; fatigue strength; marine atmospheres; polymer-cement concrete; repairs; Structural Research
Abstract:Load-carrying capacity and fatigue strength before and after repairing were investigated for a coastal structure in Tokyo Bay, which was subjected to serious damage by chloride for 15 years. Static and cyclic load tests together with investigation on effectiveness of repair were carried out on specimens taken from the site. It was found that the bearing and yielding capacities of deteriorated slab are 90 and 80 percent, respectively, of those of sound structure. These losses were mainly caused by 10 percent loss of reinforcement corrosion. The specimens repaired by material with high tensile strength suggested brittle failure in static load tests. It was also found that fatigue failure of deteriorated reinforcements was accelerated by pitting corrosion.
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