Steel reinforcement corrosion monitoring device and structure

CN224286651UActive Publication Date: 2026-05-26YANGJIANG NUCLEAR POWER +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YANGJIANG NUCLEAR POWER
Filing Date
2025-05-30
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing steel corrosion monitoring technologies mainly rely on electrochemical methods, ultrasonic methods, and semiconductor sensing technologies. These technologies suffer from problems such as the need for frequent electrode replacement, limited monitoring distance, easy sensor damage, and monitoring signal deviation. Furthermore, traditional methods require drilling, which can cause structural damage.

Method used

A monitoring device that does not require drilling is formed by wrapping sensing optical fibers around steel bars and combining them with a cement mortar protective layer. The optical fiber signal is transmitted through the first and second transmission optical fibers. The cement mortar layer and the structural steel bars corrode simultaneously, enabling long-term monitoring.

Benefits of technology

It achieves high-precision, long-cycle steel corrosion monitoring, reduces operation and maintenance costs, and allows the monitoring device to corrode synchronously with the structure, reducing structural damage, improving early warning time by 85%, and reducing power consumption by 60%.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a device for monitoring steel reinforcement corrosion in structures and a structure thereof. The device includes a steel reinforcement segment, at least one set of sensing optical fibers tightly wound around the steel reinforcement segment, a first transmission optical fiber and a second transmission optical fiber connected to both ends of the sensing optical fibers, and a cement mortar protective layer covering the steel reinforcement segment and the sensing optical fibers. The first and second transmission optical fibers respectively extend through the cement mortar protective layer. This utility model winds the sensing optical fibers around the steel reinforcement segment, eliminating the need for additional drilling or damage to the concrete. The cement mortar serves as the outer protective layer, ensuring the penetration of corrosive media while also constraining the transmission of rust expansion force, thereby ensuring that the monitoring device has the same lifespan as the structural steel reinforcement and achieving high-precision, long-term monitoring of the steel reinforcement corrosion status of structures.
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