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System and method for electrochemically repairing salt-corroded reinforced concrete by stages

A reinforced concrete and repair system technology, applied in building maintenance, construction, building construction, etc., can solve problems such as non-involvement, and achieve the effect of eliminating the risk of negative effects

Active Publication Date: 2021-06-18
JIANGSU SOBUTE NEW MATERIALS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, there are many patents based on electrochemical restoration, two-way electroosmosis, and electrochlorination, but the integrated system of electrochemical restoration, monitoring and control, and evaluation needs to be improved. stage, multi-parameter electrochemical repair system has not been involved

Method used

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  • System and method for electrochemically repairing salt-corroded reinforced concrete by stages

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Embodiment 1

[0032] The gap electrochemical repair system built in the embodiment of the present invention has a gap migration process as follows:

[0033] (1) After the interval electrochemical repair system is built, inject the concrete re-alkalization solution into the repair pool, inject the electro-migration rust-inhibiting solution into the migration liquid pool II, and inject the electro-desalination migration liquid into the migration liquid pool I;

[0034] (2) Send instructions through the processor to collect initial indicators such as the electrolytic coefficient, pH value, oxygen concentration, temperature and other initial indicators collected by the migration fluid monitor according to the data collector, and at the same time collect the concrete salt concentration and resistivity collected by the steel-concrete structure monitor , steel potential, current and other initial indicators; after that, the repair of the salt-corroded reinforced concrete structure begins; at this t...

Embodiment 2

[0039] The gap electrochemical repair system built in the embodiment of the present invention has a gap migration process as follows:

[0040] (1) After the interval electrochemical repair system is built, inject the electro-desalination transfer solution into the repair pool, inject the electro-migration antirust solution into the transfer solution pool I, and inject the concrete re-alkalization solution into the transfer solution pool II;

[0041] (2) Send instructions through the processor to collect initial indicators such as the electrolytic coefficient, pH value, oxygen concentration, temperature and other initial indicators collected by the migration fluid monitor according to the data collector, and at the same time collect the concrete salt concentration and resistivity collected by the steel-concrete structure monitor , steel potential, current and other initial indicators; then start to repair the structure of electric desalination; at this time, the current controll...

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Abstract

The invention discloses a system and method for electrochemically repairing salt-corroded reinforced concrete by stages. The system comprises a repair system and a monitoring and regulation system, wherein the repair system comprises a current controller, a migration liquid controller, a repair tank, a waste liquid recovery tank and two migration liquid tanks; the monitoring and regulation system comprises a processor, a data collector, and a migration liquid monitor and a reinforced concrete structure monitor which are arranged in the repair tank; a repair electrode is further arranged in the repair tank; the processor is separately connected to the current controller, the data collector and the migration liquid controller; the data collector is separately connected to the migration liquid monitor and the reinforced concrete structure monitor; and the migration liquid controller is used for controlling solutions to flow in and out. The repair system of the system is easy to operate and low in maintenance cost. The system and method for electrochemically repairing the salt-corroded reinforced concrete by stages can not only restore the alkalinity of the concrete through electrochemical re-alkalization, but also improve the efficiency of corrosive ion removal and corrosion inhibitor introduction through bidirectional electromigration and electrodeionization. In addition, the states of reinforcing bars, the concrete and migration liquid can be monitored in real time, and the safety of electrochemical repair is improved. Ultimately, the service life of a reinforced concrete structure is effectively prolonged.

Description

technical field [0001] The invention belongs to the field of durability restoration of reinforced concrete, and in particular relates to a system and method for electrochemically repairing salt-eroded reinforced concrete in stages. Background technique [0002] Existing reinforced concrete structures are faced with the corrosion of steel bars caused by chloride ions, sulfate ions, etc., which seriously affect the durability of reinforced concrete. The electrochemical repair technology developed based on the electrochlorination technology can not only remove the chloride ions in the concrete, but also introduce the rust inhibitor to the surface of the steel bars in the concrete, which has a continuous corrosion inhibition effect on the corrosion of the steel bars in the concrete structure. [0003] At present, there are many patents based on electrochemical repair, bidirectional electroosmosis, and electrochlorination, but the integrated system of electrochemical repair, moni...

Claims

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Application Information

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IPC IPC(8): C23F13/06C23F13/22E04G23/02
CPCC23F13/06C23F13/22E04G23/02C23F2201/02
Inventor 石亮周霄骋蔡景顺穆松洪锦祥刘建忠王倩张敏
Owner JIANGSU SOBUTE NEW MATERIALS