Cooling Tower Repairs
To address on-going corrosion-induced deterioration in two 458-foot tall cooling towers at the St. Johns River Park Plant, the Jacksonville Electric Authority retained Walter P Moore to prepare a repair package. A wind load analysis considered the impact of concrete removal on the tower during the remediation. The analysis results were used to establish concrete removal limits and work-phasing scenarios to be followed during construction for hurricane and non-hurricane seasons. The restoration work included materials testing, extensive concrete repair of the cooling tower veils, and the installation of an impressed current cathodic protection system to both towers to mitigate corrosion in the reinforcing steel. Approximately 200,000 square feet of deteriorated concrete was replaced with durable concrete repair materials.