White Concrete for Safety
in Tunnels

In recent years ever greater demands have been placed on the surfaces of tunnel inner shells for instance with respect to their ability to be cleaned and their brightness for traffic safety reasons.  As the most tunnel coatings that are applied reveal damage (spalling and contamination), the accident risk for users soars and there is an increased need for maintenance work.

As a result light self-compacting concrete without a coating is used to fulfil the high demands on the surface of the tunnel inner shell. Here the concrete has to comply with the required value for dimensioning the lighting...