Civil Engineering Reference
In-Depth Information
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Classification was by no means unambiguous as to some extent it required
the respondent to make a subjective judgement based on information provided
by the inspection report. For example, a repair having minor cracking may
be seen as being structurally successful by the repairer but considered to be
aesthetically unacceptable, or exhibiting early signs of failure by the owner
of the structure. These situations can lead to disputes but ultimately repairs
have to be carried out to the of the owner and it is the responsibility of the
repairer to clarify performance requirements beforehand.
14.5.1 Performance of all types of repair
For all types of repair, 50 per cent were reported to be successful, 25 per cent
exhibited early evidence of failure and 25 per cent had failed. Interestingly,
these data are identical to those of the US Corps of Engineers (Emmons,
2006).
Common requirements are for contractors to guarantee repairs for 5 or
10 years, depending on the situation. National authorities having their own
90
80
70
60
50
40
30
20
10
0
0-5
0-10
0-25
Age of repair (years)
