Patent · US Expired

Method for improving the corrosion resistance of reinforced concrete

US6224943A · kind A · utility

7Cited by

4References

8Claims

0Family size

Assignee

Grillo-Werke AG · DE

Inventors

Michael Knepper · Northampton, US
Jochen Spriestersbach · Bornheim, DE
Juergen Wisniewski · Wesel, DE

Key dates

Filing date	Apr 24, 2000
Grant date	May 1, 2001
Priority date	—
Expiry date	Apr 24, 2020

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC23F2201/02
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

The method for improving the corrosion resistance of reinforced concrete coated with a thermal spray coat of metals, especially of zinc or zinc alloys, is effected by electrically connecting said spray coat with the armour and additionally coating it with a polyurethane resin which is applied as a low-viscosity solution in organic solvents.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.