Elgeseter bridge (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
:
The concrete in the bridge has shown to contain Alkali-Silica Reactive deposits and several damages associated with Alkali-Silica Reactions have been observed. Among other things, an elongation of the superstructure has been measured. This has also led to an inclination of the columns. Due to this, the bridge may be exposed to significant additional forces. Alkali reactions are a decomposition mechanism due to chemical reactions between alkali-reactive aggregates and alkalis in the cement paste. The reaction product is an alkali gel that swells during water absorption. This leads to expansion of the concrete and gradual internal and external cracking.
Prior information
:
Design standards, Drawings, Design documents, Previous inspections, Monitoring data
Performance indicator
:
Displacement
Inspection method
:
Visual inspection
Relations with other elements
The inspection method used in this case study to determine the object state was "Visual inspection". This can include any of the following surveying technologies. Click one of the links below for more information:
Visual inspection
- (No corresponding surveying technology was found.)