Sealing system keeps tunnel industry digging

Tunnels are getting larger, deeper, and excavated in more challenging conditions. There is also growing pressure to successfully complete these projects while meeting increasing demands for performance, on-schedule delivery, and safety. However, on many projects, concrete tunnel segments are fitted with rubber gaskets onsite and secured using adhesive, which can lead to time-consuming and cost-intensive repair work as a result of displacement between segments that are not accurately positioned. This can reduce the gasket’s ability to withstand water pressure, exerting negative effects on the outcome of a project.

Cast-in profile sealing systems help the tunneling industry keep to project timescales and budgets, and shorten the production process of concrete tunnel gaskets.

The sealing system is pre-cast into the tunnel segment during manufacture, removing the need for adhesive on installation, which enables installers to save time and money. The gasket forges a superior bond connection with the segment to improve installation accuracy and ensure increased water tight performance.


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