Restoration of concrete decks
US6183624A · kind A · utility
Inventor
Key dates
| Filing date | Nov 22, 1999 |
| Grant date | Feb 6, 2001 |
| Priority date | — |
| Expiry date | Nov 22, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2111/723
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Restoration of a concrete roadway is effected by application onto the upper surface of the roadway of steel sheets which are used as an anode for electrolytic transfer of ions between the anode and the reinforcing bars of the concrete as cathode. The steel sheets are placed in effect directly on top of the concrete surface so as to communicate forces from the traffic to the concrete surface without the necessity for separate support of the sheets. An intervening layer may be formed of particulate material, a very thin felt or there may be no intervening layer. The sheets can be formed by two layers of steel with the upper layer embossed and the edges offset so as to define flanges allowing the sheets to be bolted together. A covering wear layer such as asphalt can be applied on top of the sheets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.