Nerlandsøybrua (object state)
A condition of an object at a particular time, reflecting the object's ability to fulfil it's requirements.
Properties
Element type
:
Object state
Summary
:
During this inspection there were studies conducted on the materials where the concrete cover, carbonation and chloride content was measured. The chloride content proved to be of critical value in several places on the bridge. This indicates that chloride corrosion is likely. The largest values for chloride were registered on the north side of the bridge, sheltered from the design direction. The areas closest to the land had the highest chloride content, which is expected because of the low altitude. Visual inspection of the damages coincided well with the chloride studies. In areas with high chloride content there was also detected spalling and delamination of the concrete cover. In areas where the reinforcement is visible there is obvious corrosion.
Prior information
:
Design standards, Drawings, Design documents, Previous inspections
Performance indicator
:
Chemical properties, Spatial properties (concrete cover/duct voids)
Inspection method
:
Chemical methods, Visual inspection
Relations with other elements
:
Observed damage types Local rupture or failure, Cracks, Spalling, Material loss of reinforcement steel, Delamination
The inspection method used in this case study to determine the object state was "Chemical methods,Visual inspection". This can include any of the following surveying technologies. Click one of the links below for more information:
Chemical methods
Visual inspection
- (No corresponding surveying technology was found.)