2. Gain and maintain structural integrity for improved safety.
Damage from hydrostatic pressure, corrosive chemicals in groundwater, years of extreme temperature fluctua-
tions and inevitable tunnel accidents can compromise concrete and other tunnel construction materials. That
puts the structural integrity of a tunnel at risk and can lead to unpredictable risks to public safety. The water-
proofing materials must be designed and installed to mitigate these dangers. You can rely on CETCO to ensure
your tunnel waterproofing is done right, the first time.
Comprehensive approach. Dependable products.
CETCO provides integrated planning, design guidance and quality installation for tunnel waterproofing. Our 50-
year track record speaks to the dependability of our products, commitment to quality and outstanding value. We
serve the diverse needs of the tunneling industry in projects ranging from cut and cover applications to deep
tunnel projects. Transportation and customized needs in a broad spectrum of environments and site-specific
Superior Technology. Composite Active Polymer Technology (APC)
Removing and repairing failed waterproofing is not even possible in many circumstances without removing tons
of overburden. That response is labor-intensive, noisy and expensive. Tunnels are often placed in highly sensitive
locations where disruptions in their service can lead to major economic impacts to a region or city. That’s why
a product with the ability to “heal itself” over time is crucial to tunnel waterproofing. COREFLEX®
by CETCO has
unique performance and installation characteristics to reduce the risk of water ingress in tunnels structures—
saving time, cost and disruption.
Planyourtunnelwaterproofingwithassuranceofsuperiorperformance.
From deep tunnels bored through solid rock to cut-and-cover in frable gravel, tunnel waterproofing is one of the most de-
manding and challenging sectors of the industry. Installing the right tunnel waterproofing material requires integrated plan-
ning and a comprehensive understanding of the project structure and purpose. In addition to the wide range of products
suited for these unique challenges, CETCO offers deep expertise in planning, consultation and installation to ensure a
low-maintenance, watertight structures for generations.
3. WATERSTOP
Continuous in all cold pour joints
WATERPROOING
MEMBRANE
From 60-100 mils; may
contain active layer
depending on application
SMOOTHING SHOTCRETE
Protection against rough surface of
hard rock
ANCHORING SYSTEMS
Specifically designed for tunnels
4
5
GEOTEXTILE
Added barrier for drainage
2
3
1
KEE Membrane
Top Coat
COREFLEX®
Waterproofing
Membrane
Weft Inserted Knit
Polyester Reinforcement
KEE Membrane Bottom Coat
Active Polymer Core (APC)
4. Weathering and UV-Resistant
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Excellent Puncture and
elongation properties
CETCO waterproofing membranes are heavy
woven reinforcement fabric in the PVC layer
which provides exceptional puncture and tear
resistance.
Self-sealing
Seemingly small damage to the PVC membrane
during installation can cause major problems
down the road. The self-sealing capabilities of
the Active Polymer Core (APC) layer can drasti-
cally reduce this risk.
Root resistant
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Micro-organism and
chemical resistant
Our tunnel waterproofing membranes like
COREFLEX, T-80 and T-100, resists high
concentrations of salts, fuels, oils and
organic solvents.
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the T-80, T-100 and CORFLEX waterproofing membranes. This is where some copy would go that would speak to the
tunneling system waterproofing membrane products; like the T-80, T-100 and CORFLEX waterproofing membranes.
Durable, Flexible and
reliable welding
Specifically formulated KEE enhanced PVC thermo-
plastic has heavier density material at the molecu-
lar level providing superior welding properties.
Fire and heat resistant
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EXCELLENT HYDROSTATIC RESISTANCE:
COREFLEX has been successfully tested to resist
over 5.2 MPa, 754 psi (532 m - 1739 feet) of pres-
sure per ASTM D751 and 100 m (231 feet) of hy-
drostatic pressure per ASTM D5385; the maximum
resistance pressure requirement per ASTM D5385.
High performance waterproofing products for tunnels
5. The Hydroshield Quality Assurance Program is a systematic approach to ensure optimum, long-term
waterproofing performance necessary for tunneling projects. No other waterproofing manufacture
can match the peace of mind that comes with expert consultation, strategically managed installation,
contractual accountability and a no-dollar-limit warranty. Our reputation for long-term performance and
superior customer service is based on more than 50 years of waterproofing success around the world.
INDEPENDENT INSPECTIONS
Effective waterproofing inspections require a well-
coordinated field effort. Compliance with project
requirements during installation and subsequent work
by other trades can be monitored by third-party
independent inspection hired by the owner.
Integrated system for optimum
performance
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Total system review
CETCO’s technical staff can provide a thorough
review of the specification and waterproofing
details for constructibility and completeness.
on site support
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Trained, professional
applicators
Successful installation begins with experienced,
professional craftsmanship. Since 1981, CETCO
has maintained and managed an Approved Appli-
cator Program like no other manufacturer.
Job-specific design assistance
We work with your design team to select and
plan the waterproofing system best suited to your
project’s site conditions and construction meth-
odology. Our CAD Details minimize field decisions
and ensure both design and construction teams
understand the installation requirements.
A proven installation process that provides peace of mine
QUALITY ASSURANCE
PROGRAM
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Metropolitan transportation Authority (MTA), New York City, NY, USA
name of project, City name, st, country
name of project, City name, st, country
Project Highlights:
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that would highlight some of the tunneling experience of CETCO. This is where some copy would go that would highlight some of the
tunneling experience of CETCO. This is where some copy would go that would highlight some of the tunneling experience of CETCO.
