Reinforcement connections
Connection to the reinforcement should be performed with bolted or welded connections or
shot-fired nails. If bolted joints include other metals (e.g. copper), embedded connection
points should be sealed with dense mastics to prevent galvanic corrosion until the cathodic
protection can be put into operation.
The number and location of connections should be chosen in connection with detailed
design of the installation.
Power supplies
The power supply to the anode sections should be direct current. The regulation may be con-
trolled by voltage (typically in the range 0–15 volts), controlled by power supply with indi-
vidual exits to the single anode sections or in special cases controlled by potentials. The
control boards with power supply and other electronics should be built in accordance with
the rules valid for the application concerned.
Repair
The concrete structure to be repaired should be carefully checked and all previous repairs and
existing damage in the form of defects and delamination should be assessed. To achieve
approximately uniform conductivity, the former polymer-bound repairs should be replaced
and new repairs of defects and delamination should be made with cement-bound repair mor-
tar. Additives such as micro-silica and bond improving of polymers should not be used, since
they will reduce the conductivity. Repair with cement-based sprayed mortar is applicable.
The anode system
The anode system specified in the project should be installed with careful observation of the
specifications of the manufacturer. In particular, it should be controlled that embedment
mortar and the workmanship ensure good electrolytic contact to the substrate.
