Cathodic Protection
CATHODIC PROTECTION
What is Cathodic Protection
Cathodic protection is an electrochemical technique to prevent the corrosion that occurs on metallic materials placed in contact with aggressive environments , such as soils , seawater, fresh water, chemicals , concrete, etc…
How is the corrosion
The corrosion that trigger in metallic materials are of various types , including: – To stray currents or stray – To electrochemical reaction with the environment – To geological pile – For the galvanic cell
How does the “cathodic protection”
Cathodic protection is a technique of total blockage of the corrosion on the metal structure . Cathodic protection is to circulate a current between the anode of a sunken land and the structure to be protected; this current causes the lowering of the potential of the metallic material , thus reducing the corrosion rate up to a complete standstill.
How to apply cathodic protection
Cathodic protection is a technique completely non-invasive and can be applied to metal structures already buried , without any specific intervention on the latter. A cathodic protection system consists of a DC generator (power supply cathode ) , whose negative pole is connected to the structure to be protected simply by an electric cable , while the positive pole is connected to an anode made to sink HOC with specific materials ( Fe-Si -Cr , Titanium, etc.). . The electric field generated by this circuit is sufficient to inhibit corrosion even for several Km of conduct.
Fields of application
The fields of application are varied , including:

IMMERSED METALLIC STRUCTURES
- Off-Shore Facilities
- Sea Line
- Port/Harbour Facilities
- Ship Hulls

INDUSTRIAL STRUCTURES
- Rafineries
- Industrial Establishments
- Storage/Storerooms
- Storage Facilities
- Control and Automation/Computerization of the Commercial Systems

UNDERGROUND METAL STRUCTURES
- Gas Pipelines
- Water Pipelines
- Oil Pipel
- Liquid Oxygen Pipeline
- Tanks
- Cable Ducts
- Decompression Stations
- Pump in/out Boxes

REINFORCED CONCRETE STRUCTURES
- Bridges
- Foundations for Buildings
- Piling
- Dams
- Road Foundations
- Load Bearing Frameworks