Use in tunnels

According to the RABT (Guidelines for the Equipping of Road Tunnels ("Richtlinien für die Ausstattung von Straßentunneln")) and the ZTV – Tunnel (additional technical contract conditions for tunnels ("zusätzliche technische Vertragsbedingungen – Tunnel")), flammable liquids which escape in case of disasters must be collected in reinforced concrete slot units and drained through shafts with covers that are impermeable to rainwater and ejection-proof.

Use of reinforced concrete slot units in conjunction with manholes within scum boards has proven its worth in numerous construction projects.