Why are post-tension parking structures such a severe problem?
Primarily, because they generally appear to be in good condition, particularly when compared to mild reinforced parking decks. These post-tension decks display minimal amounts of spalling even when a majority of the tendons have released. Since these decks have very minimal observed deterioration, even professionals specializing in parking structure repairs are not identifying the extent of the structural deterioration, which may cause a collapse with virtually no warning.
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