According to the corrosion mechanism of SSAW steel pipe, a variety of protective measures have been proposed so far. These protective measures are basically divided into the following categories:
1. For the gradual invasion of harmful substances in the environment from outside to inside, a series of technology control templates, water spraying materials, impervious layer, polymer modified mortar and so on are used for permeability control.
2. For the electrochemical corrosion properties of steel, the basic electrochemical corrosion using chemical principles is eliminated. Such measures as cathodic protection, electrochemical desalination (again simplified) and technology can improve the corrosion resistance of steel rust inhibitors.
3. Use hard or corrosion-resistant materials to coat or coat steel surfaces, such as reinforced epoxy coatings, steel plates and other stainless steel coatings.
4. The permeability of salt can be remarkably improved by using low moisture and wholly wet rubber mixed with high performance concrete. In this kind of concrete layer with proper thickness of protecti