Maintenance Planning for Chloride Initiated Corrosion in Concrete Structures

Corrosion of the reinforcement in concrete structures can be initiated when the chloride concentration around the reinforcement exceeds a threshold value. In order to prevent the corrosion from reaching a stage where the load-bearing capacity of a given structure suffers a substantial decrease, maintenance and repair of the structure are carried out. In the present paper it is shown how the planning of maintenance and repair can be carried out on the basis of decision theory in conjunction with FORM/SORM-analysis. In an illustrative example the optimal plan for maintenance and repair of a motorway concrete bridge is determinedCorrosion of the reinforcement in concrete structures can be initiated when the chloride concentration around the reinforcement exceeds a threshold value. In order to prevent the corrosion from reaching a stage where the load-bearing capacity of a given structure suffers a substantial decrease, maintenance and repair of the structure are carried out. In the present paper it is shown how the planning of maintenance and repair can be carried out on the basis of decision theory in conjunction with FORM/SORM-analysis. In an illustrative example the optimal plan for maintenance and repair of a motorway concrete bridge is determine