Handbook for Bridge Inspections - TSP2

Example 9.2-25
9.2 CONCRETE ELEMENTS
Leakage through joints between concrete elements
because ofinadequalc seal ing ca using a dampness
attack on the underside orthe bridge.
The elements are prestressed and therefore particularly
vulnerable to corrosion of the reinforcement.
The bridge deck has been exposed to de-icing salt.
Type of Damage: 207
LeakagelDampness of Concrete
Degree of Damage &
Consequences:
3M
Cause of Damage: 38
Construction Fault
Procedures:
In sta llation ornew waterproofing layer on the bridge
deck within one year
Example 9.2-26
Leakage through joints between the clements of a
pedestrian culvert because of inadequate seal ing.
Type of Damage:
Lcakage/Dampncss of Concrete
Degree of Damage &
Conseq uences:
Cause of Damage:
Construction Fault
207
3T, 2M
38
Procedures:
The joints should be sealed within three years.
Example 9.2-27
Serious leakage in the region of a power cable duct.
There is a pathway under the bridge.
Type of Damage: 207
Leakage/Dampness of Concrete
208
Di scoloration of Concrete Element
Degree of Damage ICon sequences: 2M, 2E
Cause of Damage : 38
Construction Fault
Procedures:
Leakage to be sealed within five years.
Handbook for Bridge Inspect ions 165