Tunnels
Xypex Meets the Challenge Deep Below the Surface
Whether transporting people through subways and tubes, moving vast amounts of stormwater or carrying electrical lines and switches, tunnels play a significant role in the modern world. Underground and often under bodies of water, tunnels can be seriously compromised by extreme hydrostatic pressure and water ingress.
There are all types of tunnels, and Xypex is universally recognized for waterproofing, protection and repair of these critical infrastructure components. For new construction or rehabilitation of existing tunnels, Xypex has a record of success based on thousands of applications in tunnels across the globe.
Find Projects
Cairo Metro Line 3 Phase 3 & 4
In the Cairo Metro Underground project, specifically for Line 3, Phase 4, Vinci served as both contractor and consultant, facing considerable challenges, particularly with the initial waterproofing material. To address these issues, the project team opted for Xypex Concentrate, a move that significantly improved the waterproofing of stations and water tanks within the project. A total of 12 tons of Xypex Concentrate was utilized, demonstrating its effectiveness in a demanding environment.
WestConnex M4E Tunnel
The WestConnex M4E roadway tunnel project in New South Wales, Australia, aimed to develop a watertight tunnel system. Numerous options for waterproofing were evaluated, with efficacy, cost, and impact on the construction schedule being the primary deciding factors.
West Gate Tunnel
Engineers were concerned about potential adverse effects of carbonation from vehicle emissions on the concrete infrastructure for the West Gate Tunnel project. The general contractor conducted tests on concrete treated with Xypex Admix C-500 and found that the Xypex-treated concrete reported a carbonation effect depth of 0 mm. As a result it was decided to add Xypex Admix C-500 in the concrete for the exhaust ducts to permanently waterproof, enhance durability, and provide resistance to carbonation throughout the concrete's lifespan.
Delhi Metro Rail Corporation (DMRC) Phase III & Phase IV
Due to the success of the Xypex surface-applied and repair system in various projects, the Delhi Metro engineering team consulted Xypex to provide a waterproofing solution for phase III. The engineering team specified Xypex Admix C-2000 NF and Xypex Concentrate for the waterproofing of phase III underground stations in conjunction with spray applied membranes on the rooftop slab.
