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Monitoring device and monitoring method for corrosion rate of steel bar in civil engineering

A technology for steel corrosion and civil engineering. It is used in measuring devices, weather resistance/light resistance/corrosion resistance, instruments, etc. It can solve the problem of insufficient contact between the sensor and the steel cage, and achieve the effect of strengthening the strength.

Pending Publication Date: 2022-08-05
JIANGXI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the stainless steel rings in the traditional concrete corrosion rate monitoring device are only in contact with the steel cage through pre-embedding, resulting in insufficient contact between the sensor and the steel cage

Method used

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  • Monitoring device and monitoring method for corrosion rate of steel bar in civil engineering
  • Monitoring device and monitoring method for corrosion rate of steel bar in civil engineering
  • Monitoring device and monitoring method for corrosion rate of steel bar in civil engineering

Examples

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Effect test

Embodiment 1

[0042] Example 1, see Figure 1 to Figure 8 , The present invention proposes a monitoring device for the corrosion rate of steel bars in civil engineering, including a mold 10, a steel cage 20 is arranged inside the mold 10, and a first corrosion monitoring component 30 is provided at both ends of the steel cage 20. Between the two first corrosion monitoring components 30 is a second corrosion monitoring component 40 connected to the outside of the reinforcement cage 20 , and both the first corrosion monitoring component 30 and the second corrosion monitoring component 40 are connected to the detector 50 . connected.

[0043] The first corrosion monitoring component 30 includes a metal ring 31 mounted on the outer surface of the steel cage 20 , and a first corrosion sensor 32 mounted on the outer surface of the metal ring 31 .

[0044] The second corrosion monitoring assembly 40 includes a plurality of second corrosion sensors 41 mounted on the outer surface of the steel cage...

Embodiment 2

[0064] Embodiment 2, for a monitoring device for the corrosion rate of steel bars in civil engineering proposed by the second embodiment of the present invention, it includes a mold 10, and a steel bar cage 20 is provided inside the mold 10. The end is provided with a first corrosion monitoring component 30, and a second corrosion monitoring component 40 connected to the outside of the reinforcement cage 20 is arranged between the two first corrosion monitoring components 30. The first corrosion monitoring component 30 and the second corrosion monitoring component Both the rust monitoring components 40 are connected to the detector 50;

[0065] The first corrosion monitoring component 30 includes a metal ring 31 mounted on the outer surface of the steel cage 20, and a first corrosion sensor 32 mounted on the outer surface of the metal ring 31;

[0066] The second corrosion monitoring assembly 40 includes a plurality of second corrosion sensors 41 mounted on the outer surface o...

Embodiment 3

[0072] Embodiment 3, the third embodiment of the present invention proposes a monitoring device for the corrosion rate of steel bars in civil engineering, including a mold 10, a steel cage 20 is provided inside the mold 10, and two ends of the steel cage 20 are provided. There is a first corrosion monitoring component 30, a second corrosion monitoring component 40 connected to the outside of the reinforcement cage 20 is arranged between the two first corrosion monitoring components 30, the first corrosion monitoring component 30 and the second corrosion monitoring component 40 are provided. The monitoring components 40 are all connected with the detector 50;

[0073] The first corrosion monitoring component 30 includes a metal ring 31 mounted on the outer surface of the steel cage 20, and a first corrosion sensor 32 mounted on the outer surface of the metal ring 31;

[0074] The second corrosion monitoring assembly 40 includes a plurality of second corrosion sensors 41 mounted o...

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Abstract

The invention provides a monitoring device and method for the corrosion rate of steel bars in civil engineering, and the device comprises a mold, the interior of the mold is provided with a steel bar cage, and the two ends of the steel bar cage are provided with first corrosion monitoring assemblies. A second corrosion monitoring assembly connected to the exterior of the reinforcement cage is arranged between the two first corrosion monitoring assemblies, and the first corrosion monitoring assemblies and the second corrosion monitoring assembly are both connected with a detector; the first corrosion monitoring assembly comprises a metal ring installed on the outer surface of the reinforcement cage and a first corrosion sensor installed on the outer surface of the metal ring. The second corrosion monitoring assembly comprises a plurality of second corrosion sensors installed on the outer surface of the reinforcement cage and a packaging layer arranged outside the second corrosion sensors. The problem of insufficient contact between the sensor and the reinforcement cage can be solved, so that the reinforcement cage can be conveniently monitored by the corrosion sensor.

Description

technical field [0001] The invention relates to the technical field of civil engineering, in particular to a monitoring device and a monitoring method for the corrosion rate of steel bars in civil engineering. Background technique [0002] Corrosion of steel bars has a great impact on the durability and safety of concrete structures. Under the action of carbonization, chloride ion erosion and other factors, the pH value of the medium in the concrete gradually decreases, and the passive film formed on the surface of the steel bar in the alkaline medium will gradually be destroyed and lose its protective effect, causing corrosion of the steel bar. The volume of the corrosion product is The corresponding corroded steel bars are 2-4 times the volume, so they will expand around. At the same time, constrained by the surrounding concrete, a rust expansion pressure is generated on the interface. [0003] Corrosion of steel bars will not only affect the bonding properties between s...

Claims

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Application Information

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IPC IPC(8): G01N17/00
CPCG01N17/006
Inventor 朱街禄肖莉娜李香兰周艳华李琪宋军伟
Owner JIANGXI UNIV OF TECH
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