Beurteilung von Korrosionsschutzsystemen für Offshore-Windenergietürme [Teil 2]

Assessment of corrosion protection systems for offshore wind energy towers - part 2: Results and conclusions

Based on field and on laboratory tests, the corrosion protective performance of different corrosion protection systems for offshore wind energy towers was investigated. The systems under investigation included duplex systems with Zn/Al metallization, multi-layered organic systems, a single-layer thick organic system, Zn/Mg metallization and cathodic protection of uncoated sections. Special field specimens and laboratory specimens were utilized in order to investigate the systems. Laboratory tests included immersion tests, ageing tests, test on cathodic compatibility and electro-chemical impedance spectroscopy. Part 1 of the paper (Stahlbau, No. 4/2009) covererd the general experimental design and details of the experimental procedures, whereas Part 2 deals with the results of the test programme.