The invention relates to the field of cathodic protection of reinforced concrete structures, and in particular to a design of discrete anode for cathodic protection suitable for being installed inside holes or slits made in the concrete. The anodes commonly used for the cathodic protection of reinforced concrete consist of a titanium substrate coated with transition metal oxides or other types of catalysts for anodic oxygen evolution.

Discrete anodes are not suitable for all applications, especially for thin concrete element or where the reinforcement is randomly spaced within a structure. The main area of application of discrete anodes would be thick reinforced concrete elements, such as beams, headstocks or piles in tidal/ splash zones where the application of ribbon anodes leads to grout acidification in most cases. Having in mind the long term durability of the cathodic protection components installed permanently in concrete and the importance of delivering a CP system with low maintenance.

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