This type of jack is used to apply tension to multi-strand post tensioning (PT) tendons placed in ducts embedded within concrete structures, such as some bridge components, in order to increase the load carrying capacity of the structure. Search animated video of "Sabula accelerated bridge construction" soon (August 2017) to see this PT jack in action. #bridge #Iowa_DOT #jack #kimball #post_tensioning #PT #strand #tendon
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