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

A corrosive environment, anti-corrosion technology, used in building components, building insulation materials, etc., can solve problems such as adverse effects, exposed steel insulation layer is difficult to remove straight thread connections, etc., to achieve reliable sealing effect, outstanding anti-corrosion effect, and operation process easy effect

Inactive Publication Date: 2015-06-03
NO 1 ENG COMPANY CO LTD OF CCCC FIRST HARBOR ENG COMPANY +1
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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

Method used

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

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Embodiment 1

[0023] Such as figure 1 As shown, the anti-corrosion structure of steel bar under the highly corrosive environment provided by the present invention comprises a film protective layer, sleeve pipe 2, sealing mouth 3 and sealing mortar block 4, the film protective layer is wrapped on the exposed steel bar 1, and the sleeve pipe 2 is sleeved on the On the steel bar wrapped with the film protective layer, the sealing mortar block 4 is sealed at one end of the casing 2 close to the concrete structure 5 , and the sealing mask 3 is set at the other end of the casing 2 .

[0024] Specifically, the film protection layer is a plastic film layer, and of course other waterproof materials can also be used.

[0025] Specifically, the casing 2 is a PVC pipe, or other commonly used pipe materials.

[0026] In the above embodiment, the exposed steel bar 1 of the concrete structure 5 is wrapped with a plastic film to form the first protective layer, and then the casing 2 is put on. The top of ...

Embodiment 2

[0028] The method for anti-corrosion of steel bar under the high corrosion environment provided by the present embodiment comprises the following steps:

[0029] S1. Wrap the exposed steel bar 1 with a plastic film and wrap it with adhesive tape to form the first layer of protection;

[0030] S2. Covering the wrapped exposed steel bar 1 with a casing 2 matching the diameter of the exposed steel bar 1 to form a second layer of protection;

[0031] S3, using the sealing mouth 3 to seal the top of the casing 2;

[0032] S4. Use mortar to seal the gap between the sleeve pipe 2 and the concrete structure 5 .

[0033] In the anti-corrosion method for steel bars in a highly corrosive environment provided by the present invention, two layers of protection are provided outside the exposed steel bars 1 to isolate the exposed steel bars 1 from air and corrosive media to achieve the purpose of anti-corrosion of steel bars. The entire operation process is simple and the sealing effect is ...

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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...

Claims

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Application Information

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IPC IPC(8): E04B1/64
Inventor 张怡戈孟凡利高纪兵孔令磊刘亚平刘昊槟杨润来陈三洋刘保永孟令月姚辉博
Owner NO 1 ENG COMPANY CO LTD OF CCCC FIRST HARBOR ENG COMPANY
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