ACI Concrete International · 1994 · 47 citations · 0 references
EngineeringCivil EngineeringMaterials ScienceCorrosion ScienceOffshore StructuresStructural EngineeringCorrosion EvaluationCorrosion In ConcreteCorrosion Of Construction MaterialsCorrosion Of Offshore StructuresCorrosion Of SteelsCorrosion ProtectionBearing Load CapacityConcrete StrengthCorrosion ManagementLoad-bearing CapacityLong-term PerformancePrestressed Concrete StructuresReinforced Concrete In Marine EnvironmentsReinforcement Corrosion
A comprehensive research program carried out in Norway from 1962 to 1968 investigatd the long term performance of 219 reinforced concrete structures located along its long, narrow coastline. The program showed that the overall condition of the structures was very good even after a service period of 50 to 60 years. However, almost all of the structures had steel corrosion to a varying extent or had been repaired due to such corrosion. In spite of this corrosion, the effect of it on the load bearing capacity of the structures was rather moderate. This article describes the coastal concrete bridges, and the offshore concrete structures. It points out that if proper concrete strength and cover thickness are combined with proper quality control and assurance, reinforced and prestressed concrete can remain serviceable with little or no maintenance for a long time even in the harshest marine environment.