Use of fiber reinforced polymer composite cable for post-tensioning application : [summary].
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2015-05-01
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Abstract:Post-tensioning is a method frequently used in construction of segmental bridges, continuous
I-girder bridges, and piers. It involves using tendons, which are multiple strands, usually
steel, installed through voids formed by ducts either inside or outside the concrete structure.
These voids are then filled with a cementitious grout and sealed. In the past 15+ years, there
has been a rise in durability issues related to post-tensioning tendons as a result of poor
grouting practices or grout inconsistencies. These durability concerns can lead to expensive
maintenance issues or possibly tendon
failure, depending on the severity.
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