Admixtures for inhibiting corrosion of steel in concrete
US5262089A · kind A · utility
8Cited by
4References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 12, 1991 |
| Grant date | Nov 16, 1993 |
| Priority date | — |
| Expiry date | Dec 12, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S516/06
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An admixture for inhibiting chloride-induced corrosion in steel reinforcing in place in concrete comprises an O/W emulsion wherein the oil phase comprises an unsaturated fatty acid ester and ethoxylated nonyl phenol and the ester of an aliphatic carboxylic acid with a mono-, di- or trihydric alcohol and the water phase comprises a saturated fatty acid, an amphoteric compound, a glycol and a soap. The admixture is added to the concrete prior to placement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.