US 8,062,699 B2 · Method for repairing aged reinforced concrete structure using surface-penetration reinforcing agent

Abstract

Disclosed is a surface-penetration reinforcing agent that is used to effectively repair a damaged reinforced concrete structure. The surface-penetration reinforcing agent includes a silicate compound, an acrylate monomer, an amine compound and a silane compound as reactants. Further disclosed is a method for repairing a damaged reinforced concrete structure using the surface-penetration reinforcing agent depending on the aging grade of the reinforced concrete structure. According to the repair method, the surface-penetration reinforcing agent can be used to efficiently repair a damaged reinforced concrete structure depending on the aging grade of the reinforced concrete structure classified by whether or not the reinforcing bars are corroded in damaged portions of the concrete and the degree of carbonation in the concrete.

Claims16

Dependent claims

A method for repairing an aged reinforced concrete structure, the method comprising the step of (a) applying a surface-penetration reinforcing agent comprising a silicate polymer of Formula 1:

wherein R1 to R4 are independently hydrogen or linear or branched C1-C10 alkyl, n is an integer from 1 to 50, and X, Y and Z are independently an acrylate monomer of Formula 4:
wherein R5 to R7 are independently hydrogen, C1-C10 alkyl or C1-C10 hydroxyalkyl, to damaged portions of the concrete structure to penetrate into the concrete.

Dependencies are inferred from the claim text.

Facts

Application

11/888,129Filed 30 Jul 2007

Priority

KR 10-2006-012023330 Nov 2006

Published

US 2008/0131594 A15 Jun 2008

Granted

22 Nov 2011

Term ends

Not estimatedThe source records don’t support an estimate.

Classification11 codes

C04B 41/4988
Containing silicon: organosilicium-organic copolymers, e.g. olefins with terminal silane groups
C04B 41/009
After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone: characterised by the material treated
C04B 41/52
Coating or impregnating , e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering…:…
C04B 41/64
With organic materials: compounds having one or more carbon-to-metal of carbon-to-silicon linkages

Method for repairing aged reinforced concrete structure using surface-penetration reinforcing agent

Life of this patent

Method for repairing aged reinforced concrete structure using surface-penetration reinforcing agent

Life of this patent

Abstract

Claims16