Carbon fiber textile reinforcing member with anodic metal line and method of repairing and reinforcing concrete structure using the same

Patent metadata

Field	Value
Publication number	US-10927464-B2
Application number	US-201715842900-A
Country	US
Kind code	B2
Filing date	Dec 15, 2017
Priority date	Nov 3, 2017
Publication date	Feb 23, 2021
Grant date	Feb 23, 2021

Abstract

Provided are a carbon fiber textile reinforcing material with an anode metal line which can be repaired and reinforced with a high stiffness and non-corrosive carbon fiber textile by disposing a carbon fiber textile reinforcing material with an anodic metal line functioning as a conductor and a reinforcing material on a deteriorated cross-section of concrete, can maximize repair and reinforcement of a reinforced concrete structure by preventing additional corrosion of a concrete embedded reinforcing bar using a sacrificial anode arranged on the carbon fiber textile, can prevent corrosion of an existing reinforced concrete structure and can be used as a reinforcing material and a corrosion preventing material of a new concrete structure, and a method for repairing and reinforcing a reinforced concrete structure using the same.

First claim

What is claimed is:

1. A carbon fiber textile reinforcing material with an anodic metal line, the carbon fiber textile reinforcing material comprising:
concrete embedded reinforcing bars embedded in a reinforced concrete structure in transverse and longitudinal directions respectively, and in which corrosion is caused;
a carbon fiber textile disposed in a lattice shape and configured to function as a conductor;
an anode metal line made of a metal with a natural electrode potential lower than that of the concrete embedded reinforcing bars and uniaxially or polyaxially disposed on the carbon fiber textile so that a positive potential is applied to the anode metal line; and
a first connection wire configured to electrically connect the carbon fiber textile to one side of each of the concrete embedded reinforcing bars,
wherein the carbon fiber textile is configured to be connected to the concrete embedded reinforcing bars to apply the positive potential applied through the anodic metal line to the concrete embedded reinforcing bars to prevent the corrosion of the concrete embedded reinforcing bars, and to reinforce a corresponding cross-section of a deteriorated concrete part of the reinforced concrete structure.

2. The carbon fiber textile reinforcing material of claim 1 , wherein the carbon fiber textile is made of a non-corrosive carbon fiber and is configured to simultaneously function as a conductor supplying a current to perform electrolyte protection of the concrete embedded reinforcing bars and as a reinforcing material reinforcing the corresponding cross-section of the deteriorated concrete part.

3. The carbon fiber textile reinforcing material of claim 2 , wherein the anodic metal line is not directly connected to the concrete embedded reinforcing bars by a wire and is connected thereto through the carbon fiber textile functioning as a conductor.

4. The carbon fiber textile reinforcing material of claim 1 , wherein the corrosion of the concrete embedded reinforcing bars is prevented through a sacrificial anode method, and the anodic metal line is configured to function as an anode of the sacrificial anode method.

5. The carbon fiber textile reinforcing material of claim 4 , wherein the anodic metal line is manganese (Mn), aluminum (Al), or zinc (Zn) with a natural electrode potential lower than that of the concrete embedded reinforcing bars.

6. The carbon fiber textile reinforcing material of claim 1 , further comprising a second connection wire electrically connected to the other side of each of the concrete embedded reinforcing bars,
wherein the second connection wire is withdrawn to the outside through an electrolytic protection terminal box and external power is applied thereto to perform electrolytic protection through an impressed current cathodic protection method, and
the corrosion of the concrete embedded reinforcing bars is prevented through a sacrificial anode method first, and the external power is supplied to the electrolytic protection terminal box to perform electrolytic protection when the anode is completely consumed.

Assignees

• Korea Inst Civil Eng & Building Tech

Inventors

• Kim Hyeong Yeol
• Ryu Gum Sung
• Seo Dong Woo
• You Young Jun

Classifications

• C23F13/18 Primary

  Means for supporting electrodes · CPC title

• C23F13/10

  Electrodes characterised by the structure (C23F13/16 takes precedence) · CPC title

• C23F13/22

  Monitoring arrangements therefor · CPC title

• C23F13/14 Primary

  Material for sacrificial anodes · CPC title

• E04C5/073

  Discrete reinforcing elements, e.g. fibres · CPC title