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.
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.
Vie Di Romans Winery Wine Caves
To build the new cave structure, 3,700 cubic meters of
concrete was treated with Xypex Admix C-1000NF
during the batching stage and poured using concrete
pumps, achieving permanent waterproof underground
structures such as tunnels and base slabs.
Cern Point 5 Nuclear Research Centre
The Cern Project was a test carried out by scientists to try and re-create “The Big Bang”. As another product was unable to penetrate into the porous concrete, Xypex was requested. Xypex Patch'n Plug was applied to several cracks in the construction of underground chambers, and Xypex Concentrate, Modified, and Gamma Cure were used to treat the concrete surface.
This tunnel is the second longest tunnel on the Beijing- Yuanyuan Railway. It is an important passage for coal transportation and the overall development of the regional economy in Shanxi Province. The tunnel is 6189.8 meters long, the cave wall 4.3 meters high, and the vault 2.3 meters high. After 38 years of concrete erosion, serious leakage occurred. Xypex waterproofing technology was selected with Xypex Concentrate used to solve the problem at 200 leakage points over an area of 60,000 m2.