ABSTRACT
The entire structure was cast in-situ reinforced concrete. Extensive corrosion damage to the steel reinforcement was observed at many locations. This was particularly evident on the soffit and high-water level on the rectangular section lattice substructure. The original inner walkway dates from around 1979 with reinforced concrete vertical and raking piles from deck level to below the water level. The steel piles are protected up to water level by galvanic anodes and above by a coating. The Middle East is hot and in the Gulf region there is a marine atmosphere and the groundwater is also chloride contaminated. The use of computer control has been shown to be very advantageous for cathodic protection systems in swimming pools, especially for water anode systems. The barriers for using water anodes in swimming pools have previously been the aesthetics and the necessity, for safety and vandalism reasons, to avoid contact between the bathers and the anodes.
