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Information Overloader
Join Date: Mar 2003
Location: NW Lower Michigan
Posts: 29,831
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The infiltration of water (seawater) into the concrete resulting in the corrosion of the rebar in addition to sketchy concrete recipes is what caused this.
Proper caulking of the balconies and other joints was (and is) absolutely crucial to maintaining the integrity of the structure.
My guess is, during construction, whomever did the caulking was completely unaware of the importance of what they were being paid the minimum to do.
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