Structure and method for preventing reinforcing steel from being corroded in highly-corrosive environment

Abstract

The invention relates to the field of civil engineering, in particular to a structure and a method for preventing reinforcing steel from being corroded in a highly-corrosive environment. The method for preventing the reinforcing steel from being corroded in the highly-corrosive environment comprises the following steps: wrapping exposed reinforcing steel with a plastic thin film, and performing winding and sealing to form a first protective layer by adopting an adhesive tape; sleeving the wrapped exposed reinforcing steel with a sleeve of which the diameter is matched with that of the exposed reinforcing steel to form a second protective layer; sealing the top of the sleeve by virtue of a sealing cover; sealing a gap between the sleeve and a concrete structure by virtue of mortar. According to the structure and the method, the two protective layers are provided for the exposed reinforcing steel, an operation process is convenient, sealing effects are reliable, and anticorrosive effects are prominent; compared with a conventional process for smearing the reinforcing steel with cement slurry to isolate the corrosive environment, the method has the advantages that a cumbersome process of removing the cement slurry in a later period is eliminated, damage to an exposed screw head rolled with a straight thread on the reinforcing steel is avoided, the reinforcing steel is prevented from being polluted by pollutants in an offshore highly-corrosive environment, and influence on the bonding strength of concrete in the later period is eliminated.

Description

technical field [0001] The invention relates to the field of civil engineering, in particular to a structure and method for preventing corrosion of steel bars in a highly corrosive environment. Background technique [0002] At present, when civil engineering construction is carried out in open sea conditions, there are often exposed steel bars outside the concrete structure. However, due to the marine environment, the exposed reserved steel bars are easily corroded, which leads to the loss of the effective cross-sectional area of ​​the steel bars. The traditional anti-corrosion process is mainly to brush the exposed steel bars with cement slurry to form an isolation layer. However, this method has been widely criticized because it is very difficult to remove the cement slurry on the steel bars in the later stage. In particular, some steel bars have rolled straight thread heads for mechanical connection. If the cement slurry brushing method is used to prevent corrosion, it wi...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a structure and method for anti-corrosion of steel bars in a highly corrosive environment, so as to overcome the problem that the isolation layer on the exposed steel bars in the traditional anti-corrosion method is difficult to remove and has an adverse effect on the later straight thread connection

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