Cathode protection method and cathode protection device for reinforced concrete adopting CFRP (carbon fibre reinforced plastics) anode

Abstract

The invention discloses a cathode protection method and a cathode protection device for reinforced concrete adopting a CFRP (carbon fibre reinforced plastics) anode. The device comprises a reinforcing steel bar embedded with concrete, a CFRP sheet material used as a current auxiliary anode material, and a direct-current power supply used for supplying power to the device, wherein a binding material for connecting the CFRP sheet material with concrete is arranged between the CFRP sheet material and concrete. The CFRP sheet material is used as the auxiliary anode of the protection device, so that the cost is greatly reduced while an ideal protection effect is obtained; and the CFRP sheet material is bound with the concrete by the binding material in the installation method, so that the device has the characteristics of being large in coverage area, and simple and convenient to install.

Description

technical field [0001] The invention relates to the field of applied current cathodic protection, in particular to a reinforced concrete structure cathodic protection method and device using CFRP anodes. 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....

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Problems solved by technology

[0007] In view of the above deficiencies in the prior art, the purpose of the present invention is to provide a method and device for cathodic protection of reinforced concrete structures using CFRP anodes, aiming to solve the problems in the prior art when carrying out impressed current cathodic protection of reinforced concrete structures. Due to the limitation of application due to high price, a new type of auxiliary anode material is provided, which can reduce the cost while achieving the ideal effect of protecting the concrete structure

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