Impressed Current Cathodic Protection Concrete
There are two type of cathodic protection impressed current.
Impressed current cathodic protection concrete. Fusion anodes work with two phase protection whereby phase 1 delivers an intense burst of electrical current to strikes the reinforcing steel and passivates rebar corrosion similar to an electrochemical treatment or iccp system. Impressed current cathodic protection is a more economical method of cathodic protection when underground pipelines are offshore or long equipment is too large to protect via one or few galvanic anodes and electrons are supplied to the cathodic structure using an external dc power source. These systems also allow for greater control and more ease of monitoring. If an impressed current cathodic protection.
By sacrificial anode cathodic protection or by impressed current cathodic protection iccp. Cathodic protection is a technique used to control corrosion in reinforced concrete. Impressed current protection uses an external dc power source to make sure that the current is strong enough to protect the metal from the elements. To install an impressed current cathodic protection iccp system a few basic components are required in addition to the reinforcing steel and the concrete in the structure to be protected.
Vector corrosion technologies is the leading supplier of corrosion mitigation products and services for reinforced concrete and masonry structures like buildings and bridges. Fusion anodes are a hybrid system that combines the power of impressed current cathodic protection with the maintenance free performance of galvanic anodes. This is an advantage over galvanic systems as the current can have a higher output with the use of fewer and longer lasting anodes. Both corrosion protection systems however operate on the same basic concept of bimetallic galvanic corrosion.
Cathodic protection can be achieved in two ways. Impressed current systems use an external power supply to provide the electrical charge. In case of an impressed current cathodic protection an external power supply is used to force a small amount of electric current through the reinforcing steel to counteract the flow of current caused by the corrosion process a metal like platinum serves as anode which corrodes at a very slow rate. Cathodic protection is used to protect almost any type of reinforced concrete structure.
Controlled external dc power source typically a rectifier current distribution system anode system. Impressed current cathodic protection requires some monitoring and maintenance but it s an efficient system that extends the service life of concrete structures for 25 years or more.