The durability design of new structures at Florida Department of Transportation (DOT) is currently performed based on environmental classification of structure's sites. Bridge substructure and superstructure environments can be classified as slightly aggressive, moderately aggressive or extremely aggressive according to the FDOT Structures Design Guidelines. Each classification requires prerequisites regarding concrete composition and concrete cover. The limitation of this durability design approach is that the actual achievable service life remains unknown. However, full-probabilistic service life models for predicting the service life in cases of chloride-induced reinforcement corrosion are available. The objective of the paper is to identify a selected benchmark of the durability design of reinforced concrete bridges in Florida by means of probabilistic modeling.

Subject
Marine environments, Materials, Composition, Reliability, Diffusion, Structures, Migration, Corrosion modeling, Case studies, Chlorides, Durability, Concrete, Reinforcement
Keywords:
Corrosion, Reinforced Concrete Structures, Probabilistic Modeling, Service Life
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2019
Association for Materials Protection and Performance (AMPP)
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