Back to results
US 2017/0268234 A1Published application
Post-tensioning concrete pipe wrap with pre-impregnated fibers
AssigneeHawkeyepedershaab Concrete Technologies, Inc.
InventorClaudio SUBACCHI
Life of this patent
Estimating the term…
Abstract
Post-tensioning wrap with pre-packed fiber tapes in resin is wrapped under tension around a concrete article. Post-tensioning wrap comprising a plurality of fiber tapes each comprising a plurality of tendons separated by a resin. The post-tensioning wrap is then cured or partially cured so that the post-tensioning wrap forms a single, unitary material around the cylinder that is substantially impermeable.
Claims17
A method for stressing an at least partially cured concrete cylinder, the method comprising:
- creating a concrete cylinder and allowing the concrete cylinder to at least partially cure;
- wrapping under tension the concrete cylinder with a post-tensioning wrap comprising at least one fiber tape comprising a plurality of tendons each of which is separated by a resin that is at least partially cured to prevent the plurality of tendons from rubbing against each other;
- at least partially curing the post-tensioning wrap so that the post-tensioning wrap forms a single, unitary material around the concrete cylinder that is substantially impermeable.
A concrete cylinder comprising:
- a concrete core;
- a post-tensioning wrap wrapped around the concrete core;
- and
- the post-tensioning wrap comprising at least one fiber tape comprising a plurality of filaments with each of the plurality of filaments separate by a resin.
1 more element
Dependencies are inferred from the claim text.