Civil Engineering Reference
In-Depth Information
Southern
Europe
12%
Central Europe
16%
Northern Europe
41%
UK
31%
A total of 230 full case histories were collected. Data were extracted and
entered into a database to enable the trends to be analysed and reported. The
data were concerned with:
•
Information about the structure
•
Initial causes of damage
•
Type of repair
•
Performance of repair.
Some of the case histories were incomplete, for example where
construction dates were not known by the respondent. Case histories of
'successful' repairs carried out less than 5 years before inspection were
included as examples of repair but excluded from analyses of performance
as they were too recent to have experienced the full rigours of weathering
and operational activities.
In addition to the full case histories, 62 abbreviated cases were obtained
for repairs in the UK involving cathodic protection (CP).
The structures that were reported comprised 77 buildings (domestic and
commercial), 75 bridges (road and rail) and 78 industrial structures (car
parks, power stations, dams and other less common structures).
Ages of the structures at the time they were reported were between 151
years (the oldest) and less than 10 years. Altogether 51 structures were more
than 50 years old but most (63 per cent) were between 20 and 50 years old,
as shown in
Figure 14.2.
The distribution of environments is shown in
Figure 14.3.
The most
common is urban (37 per cent of the total) followed by highways (24 per
cent) and rural (23 per cent).
