Tunnels & Subways

Toronto International Airport: Utility Tunnel
Ontario, Canada

BACKGROUND
The Toronto International Airport required waterproofing for a 855 meter long utility tunnel carrying vital electrical and communication lines 20 meters below grade.

SOLUTION
Krystol Crack Repair System was applied against a significant hydrostatic pressure to stop inside running water penetrating through the utility tunnels cold joints.

All cold joints were chislled to a depth of 38 mm and packed with the Krystol Crack Repair System, as per specificaton.

Utilidor repair complete. Canadian Ministry of Transport waived normal 30-day payment holdback as the Krystol Crack Repair System far exceeded their expectations.

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Slurry application of Krystol T1

Below grade view of Toronto Internation Airport