Thermal Spray in Civil Engineering
Steel structures located near coastal areas are exposed to moisture-laden air with salt content, as well as atmospheric chemicals. Applying zinc or aluminum coatings through arc-spraying is an effective method for long-term protection of these structures. Since zinc and aluminum are less noble than iron, they act as sacrificial layers to prevent corrosion. Common examples of steel structures safeguarded by these protective coatings include:
Structures Utilizing Coatings:
- Buildings
- Bridges
- Towers
- Radio and television antenna masts
- Steel gantry structures
- High-power search radar aerials
- Overhead walkways
- Railroad overhead line support columns
- Electrification masts
- Tower cranes
- Traffic island posts
- Street and bridge railings
Additionally, thermal spray coatings—particularly aluminum—are widely used in marine environments, including on topside weather equipment, machinery areas, and interior spaces exposed to moisture. This method of metallization offers highly effective, long-lasting protection against corrosion and corrosion-related structural damage, often ensuring maintenance-free durability for over 30 years.