CIPA 2005 XX International Symposium, 26 September - 01 October. 2005. Torino. Itah 
1025 
Altered filler 
The author also chose to use very thin slabs. 
This characteristic has made his works of art more vulnerable to 
thermal stress and to rain penetration 
These phenomena, combined with the constant underground 
trains vibrations, have caused the formation of crevices. 
Crevice in Nembro rosato marbre 
The alteration, in this case, is due to the artist’s choice, as he 
decided to exhibit outdoors works made of a rock whose 
structure requires indoor display. 
It is clear that the use of some protective coating would have 
slowed down the fading of the colour. 
Besides, also in this case, maintenance involving new fillings 
and the monitoring of the crevices would help to protect the 
sculptures for a longer time. 
CONCLUSIONS 
In conclusion, the analysis of the three monuments which have 
only recently been exhibited outdoors, has shown the evident 
fragility of most contemporary artistic production. 
This does not mean that these sculptures will soon disappear, it 
only means that contemporary works of art should be taken care 
of with the utmost attention: materials should be studied 
together with installation techniques; moreover, the artist’s 
intention should be well known and shared. 
Pertini Monument: the fountain on the front 
The little square is nothing but a park