Handbook for Bridge Inspections - TSP2

Whatever types of damage are observed should be used to describe
them, but their assessment shou ld be carried out as a totality. For an
example please refer to Figure 5.4-2.
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Figllre 5.4-2: InsufJiciell//damaged Cover. Corrosion /0 Ille Rein/oreemenl (111(/
Spalling.
The damage illustrated in Figure 5.4-2 consists of insufficient/damaged
cover, corrosion to the reinforcement and spalling. Such compound
damage can be assigned different degrees of damage f or carrying capacity,
maintenance costs, the environment and the bridge's overall appearance.
The table be low provides an example of how to describe and
present specific damage.
Evaluation of Compound
Damage
Descri tion of the Dama e C T M E
Insufficient/damaged cover, oorrosion of the reinforcement
and spaJlillg on lhe underneath side of the deck. I 2 3
The basis for the above damage evaluation is as follows:
The corrosion has occurred in structural reinforcemen t but its speed of
development is so low that the carrying capacity wi ll remai n unaffected
for the next ten years. A degree of damage of I has been allocated with
respect to cart)'ing capacity (C). The amount of concrete falling off
does not represent any danger to traffic safety (T) since no traffic passes
under the bridge. This column has consequently been left blank.
Even though the speed at which the corrosion is spreading is low, there
exists the probability of the corrosion spreading to several other rein-