A cathodic protection method and device for reinforced concrete structures without control

Abstract

The invention discloses control-free reinforced concrete structure cathode protection method and a device. The device comprises a rebar, a carbon fiber reinforced plastic (CFRP) sheet, and a direct current power supply, wherein the rebar is implanted into concrete; the CFRP sheet is used as an auxiliary anode material of current; the direct current power supply supplies electricity to the device; and a binding material for connecting the CFRP sheet and the concrete is arranged between the CFRP sheet and the concrete. The CFRP sheet is adopted as an auxiliary electrode of the protection device, and constant power supply of enough current or voltage is output to remove a control system and an inspection system in the traditional device. Therefore, the cost can be greatly reduced when an ideal protection effect is obtained.

Description

technical field [0001] The invention relates to the field of applied current cathodic protection, in particular to a control-free reinforced concrete structure protection method and device. Background technique [0002] Reinforced concrete structure is the most important structural form in civil engineering. With the increase of service life and the change of service environment, the deterioration and functional failure of reinforced concrete structure are more common and serious, which has aroused the attention of scientific researchers on the durability of concrete structure. . The durability of concrete refers to the ability of concrete to resist various damage factors under actual use conditions and maintain the integrity of strength and appearance for a long time. [0003] From the point of view of materials science, the most important reason for the deterioration of the durability of reinforced concrete structures is the corrosion of internal steel bars. Under normal...

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Problems solved by technology

[0009] In view of the above deficiencies in the prior art, the purpose of the present invention is to provide a method and device for protecting reinforced concrete structures without control, aiming to solve the problem of cathodic protection system cost in the prior art when carrying out impressed current cathodic protection for reinforced concrete structures. Expensive and limited in application, provide a reinforced concrete structure impressed current cathodic protection method and device without controlling the electrochemical parameters, and reduce the cost while achieving the ideal effect of protecting the concrete structure

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