The corrosion system of external prestressed steel cable involves a variety of corrosion methods and measures. First, the external prestressed system is a prestressed structure system formed by applying prestress on the prestressed reinforcement outside the main body of the load-bearing structure.

The concept and method of this technique originated in France and was widely used in later engineering practice：

1. Specific corrosion prevention methods have been developed for the corrosion prevention of external prestressed steel cables. For example, a new corrosion prevention method has been developed for Wylfa reactor prestressed steel cable systems, indicating that there is a dedicated corrosion prevention technology solution for prestressed steel cables in specific application scenarios；

2. In addition, there are related patents and technologies in the corrosion prevention of strand of prestressed concrete. These techniques may also be applicable to the anticorrosion protection of external prestressed steel cables, because they all involve the corrosion protection of steel in the prestressed state；

3. In general, for prestressed steel cables in bridge and other structures, anti-corrosion measures may include the use of surface treatment methods such as rust inhibitor, ultrafine powder, and anti-corrosion coating to improve their durability; In the specific application, it is also necessary to consider the environment and service conditions of the external prestressed steel cable.

For example, in coastal areas or environments with high underground water levels containing corrosive ions, more stringent corrosion precautions may be required to ensure the long-term performance and safety of steel cables.To sum up, the anti-corrosion system of external prestressed steel cable is a comprehensive engineering problem, and it is necessary to consider various factors and take corresponding anti-corrosion methods and measures to ensure its long-term stable operation.

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