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March 25, 2019


 Road tunnels and technology in an operational perspective
Arild Petter Sovik, Tunntech Global News

Cavidrain® is a preformed geocomposite drainage system designed to relieve water penetration and reduce hydrostatic pressure within tunnel constructions.

Directive 2004/54/EC on minimum safety requirements for tunnels says the drainage of flammable and toxic liquids shall be provided for through well-designed slot gutters or other measures. In many cases the tunnel operator needs to find space saving solutions in a cross-section with a minimal space for drainage. 

The RockDrain water-proofing concept is a special designed system for waterproofing, fireproofing, insulating and frost proofing of underground facilities and tunnels.

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