Composition and method for preserving posttensioning cables in metal reinforced concrete structures
US7541089B1 · kind B1 · utility
9Cited by
18References
7Claims
0Family size
Assignee
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Key dates
| Filing date | Dec 10, 2002 |
| Grant date | Jun 2, 2009 |
| Priority date | — |
| Expiry date | Jun 2, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2958
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A sheathed posttensioning cable assembly including an elongated metallic cable and a coaxially disposed outer sheath, with the cable assembly including a polymeric resin fiber/filament impregnated with a migratory corrosion inhibitor being inserted within the sheath and extending along the length of the cable. The polymeric resin is preferably polypropylene, polyethylene, nylon, or polyethylene terephthalate, with the corrosion inhibitor comprising a 50:50 blend of sodium benzoate and alkali metal sebacate. The inhibitor preferably comprises between 5% and 10% by weight of the impregnated fiber/filament.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.