Austrian Journal of Technical and

Sacrificial coatings are applied to the 
concrete surface and then washed away when 
removing graffiti from the wall. Their task is 
one-time protection, the coating gives up its 
role along with being washed off. To remove 
paint from such a protected substrate, use a 
high-pressure 
washer 
and 
water 
of 
appropriately high temperature. After cleaning 
the facade, the anti-graffiti coating loses its 
properties, so it should be applied again. 
Permanent coatings completely prevent 
adhesion of graffiti to the concrete surface. 
They are substantially more expensive than 
sacrificial coatings, but if properly applied, 
they will serve and protect the surface for 
many years. Their task is to create a protective 
surface, which after vandalizing should be 
cleaned only with solvent. Thanks to it, the 
concrete does not absorb the colour contained 
in the paint and remains intact. 
Fibreglass reinforced GRC concrete is a 
universal material which is used, among 
others, in ducts and troughs for electric cables. 
Such casing constructions are often created in 
places with unfavourable external conditions, 
where the cables are exposed to destruction. 
For this reason, it is necessary to use a material 
with high resistance to adverse weather 
conditions, as well as non-combustible 
material, in case of failure of the cable 
contained 
inside. 
Fibreglass 
reinforced 
concrete has first of all very good strength 
parameters. It is often used in the field, as it is 
not adversely affected even by the worst 
weather 
conditions. 
In 
addition, 
this 
composite is distinguished by its fire 
resistance. Another feature, which is a special, 
advantage when creating shields for electric 

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cables, is the lightness of the GRC concrete 
which allows for its quick transport. This 
variant is lighter in weight than the traditional 
composite and can therefore be used almost 
anywhere, in any environment and under any 
circumstances. 
GRC concrete turns out to be an excellent 
option in situations where unconventional 
solutions are needed. It can be shaped in any 
form, which is useful in construction projects 
carried out in difficult areas. In such cases, the 
ease of transport and assembly of the 
construction 
material 
is