Durability performance of submerged concrete structures - phase 2 : [summary].

PDFTech ReportBDV25-977-12Reinforced concreteCorrosionSteelDurabilityBridge piersUnderwater structuresField studiesFloridaFlorida. Dept. of TransportationSag\uc3\ubc\uc3\ua9s, AlbertoUniversity of South FloridaUS Transportation CollectionThousands of Florida bridges have steel-reinforced concrete piling foundations standingin salt water. Over time, chloride ions in the water can migrate through the concrete toattack the steel inside. The Florida Department of Transportation (FDOT) has implementeddesigns that better protect the steel. However, many structures were built before the newstandards and, as such, are more susceptible to corrosion. Steel reinforcement has beenstudied extensively in the section of the pile just above the water line, the so-called splash-evaporation zone, where salt buildup is greatest.The portion of the structure below the water linehas been less studied, but this area can still be asite of steel degradation