Concrete tunnel waterproofing and restoration

The method for waterproofing tunnels and reinstate its proper surface condition with KÖSTER products is based on a combination of negative side waterproofing and surface restoration systems.

Flowing water is stopped by injecting the water reactive elastic PU-injection resin KÖSTER 2 IN 1. Small leakages which are being penetrated by water as well as water droplet formations can be sealed with KÖSTER KD 2 Blitz Powder. To waterproof the entire surface from the negative side KÖSTER NB 1 Grey is applied to the prepared substrate. This is followed by a layer of the polymer modified levelling mortar KÖSTER C-Coat to create a uniform appearance. Finally, the system can be covered with a finishing touch of KÖSTER Acrylic Paint.

Always adhere to the specifications in the respective Technical Guidelines. Also observe the local guidelines and standards.

 

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