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Arc-sprayed zinc coatings are more frequently used as anode for the cathodic protection of reinforced concrete structures. However, as with any other conductive coating, zinc should be applied with the highest possible adhesion in order to serve as a durable anode. Factors affecting the adhesion of zinc on concrete are discussed here for the first time. Preheating the concrete surface prior to zinc application has been found to be particularly beneficial. The measured adhesion values have also been found to vary significantly with the pull out procedure.