Corrosion resistant tendon system
US6588193B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Mar 15, 2001 |
| Grant date | Jul 8, 2003 |
| Priority date | — |
| Expiry date | Mar 15, 2021 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04C5/08
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A mono-strand tendon for unbonded post-tension construction. A mono-strand wire tendon having interstices between the individual wires is formed with a corrosion resistant material between the tendon interstices. A first sheath is positioned around the tendon exterior surface, and corrosion resistant material is positioned between the tendon exterior surface and the first sheath. A second sheath can be positioned around the first sheath, and a lubricant or corrosion resistant material can be placed between the first and second sheaths. The corrosion resistant material can be positioned within the interstices of the mono-strand tendon by displacing one or more of the wire strands away from the other wire strands to open up the interstices. Corrosion resistant material can be placed on the wire strands, and the displaced wire strand can be released to reform the exterior surface of the tendon and to compact the corrosion resistant material within the interstices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.