Prevention of Corrosion Damage

Recognizing the symptoms and mechanism of a corrosion problem is an important preliminary step on the road to finding a convenient solution. There are basically five methods of corrosion control  

Additionally, a number of basic technical measures can be taken to minimize corrosion damage in its various forms. A brief summary of generally accepted methods for controlling the various forms of corrosion follows. 

The application of protective coatings, cathodic protection, and material selection and the use of corrosion inhibitors usually serves to con- 

If dissimilar materials junctions cannot be avoided at all, it is sensible to design for increased anodic sections and easily replaceable anodic parts. Corrosion inhibitors may be utilized, bearing in mind that their effects on different materials will tend to be variable. 

Environmental modifications such as deaeration, chloride ion removal, and the addition of corrosion inhibitors can reduce the risk of pitting. However, the beneficial effects on existing pits with established highly corrosive microenvironments may be minimal. Furthermore, if the pitting attack is not eliminated completely through the use of corrosion inhibitors, penetration can actually be accelerated due to the concentration of metal dissolution onto a smaller area. 

---

Codes of practice for drinking water installations (TRWI) - Part 7 Prevention of corrosion damage and calcareous deposit formation, DVGW code of practice) (in German)... 

Figure 4.2. Corrosion of reinforcement in a balcony parapet makes the concrete spall prevention of corrosion damage in structures requires knowledge of the direction of chemical reactions.

---