Sensor device for long-term monitoring of reinforcement corrosion conditions and applied inside concrete

Abstract

The invention discloses a sensor device for the long-term monitoring of reinforcement corrosion conditions and applied inside concrete. The sensor device consists of three sensors, wherein one sensor is a reference electrode sensor which can be used inside the concrete, a second sensor is a reinforcement corrosion monitoring electrode sensor which can reflect the reinforcement corrosion conditions inside the concrete, and the last sensor is an auxiliary electrode sensor which can be used inside the concrete. The reference electrode sensor is a layered electrode which is formed by taking manganese dioxide as a main material; the reinforcement corrosion monitoring electrode sensor is a reinforcement electrode which takes reinforcements buried inside the concrete as main materials; and the auxiliary electrode sensor is a micro needle-shaped platinum electrode sensor made from platinum wires. According to the sensor device for the long-term monitoring of the reinforcement corrosion conditions and applied inside the concrete, the corrosion conditions of the reinforcements inside the concrete are reflected through testing electrical signals among the electrode sensors, thus the aim of monitoring the corrosion conditions of the reinforcements inside the concrete is achieved.

Description

technical field [0001] The invention relates to a sensor device applied inside concrete, in particular to a sensor device embedded in concrete to monitor steel bar corrosion inside concrete, in particular to a sensor device used for long-term monitoring steel bar corrosion inside concrete. Background technique [0002] Corrosion of steel bars in concrete is one of the important reasons for the insufficient durability of reinforced concrete structures. Therefore, it is very necessary to adopt an effective monitoring method to monitor the corrosion status of the steel bars inside the concrete in real time, to understand the working status of the steel bars in service in real time and to take corresponding preventive and reinforcing measures. [0003] At present, there are several sensors on the market for monitoring the corrosion of steel bars. The basic principle is to estimate the corrosion of steel bars based on the resistivity of concrete, and to judge the corrosion of ste...

AI Technical Summary

Problems solved by technology

The first method does not need to connect steel bars to form a circuit, and the operation is simple, but the judgment basis is relatively rough, and the true degree of steel bar corrosion cannot be judged quantitatively; the other method is slightly more complicated, but it can judge the basic stages of steel bar corrosion, but It is still not possible to quantitatively determine the corrosion rate of steel bars

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