Industry Sector:
Waste & Wastewater Management
Featured Product:
Concrete Protection Liner
Featured Services:
Product Supply, Design Assistance, Installation Assistance
Product Category:
Concrete Protection
Project Overview
Titan provided the material and installation for Concrete Protection Liner (CPL) in a trunk sewer running ~6.30 km, made up of 6 lined structures: 3 diversion chambers, 2 drop structures and 1 reception shaft.
Infrastructure Improvements and Expansion
This client required the construction of a trunk sewer that is 2.4 meters in diameter to divert wastewater flows from one sanitary trunk system to another. The end goal is to balance flows in the collection system and allow the wastewater plants to accommodate planned future growth.
It will provide additional operational flexibility for the maintenance of the critical sanitary sewer infrastructure and make the system more resilient to climate change and extreme weather events.
To ensure the longevity and integrity of the new infrastructure, CPL was specified to protect the concrete from microbial-induced corrosion (MIC) and infiltration and inflow (I&I).
Project Details
|
Total Pipe length |
~6.30 Kms |
|
Pipe Diameter |
2,438 mm |
|
Total Number of Pipe Sections (or Joints) |
~1,045 EA |
|
Total Area of Pipe |
~48,300 m2 |
|
Total Number of Lined Structures |
6 EA |
|
Diversion Chamber 2A |
8.5m x 7.3m x 5.6m deep (3 chambers); Approximate area – 460 m2 |
|
Diversion Chamber 2B |
7.7m x 7.5m x 9.2m deep (3 chambers); Approximate area – 580 m2 |
|
Diversion Chamber 4 |
8.45m x 7.3m x 7m deep (3 chambers); Approximate area – 470 m2 |
|
Drop Structure 2A |
9.6m ID (8m OD) x 17.2m deep; Approximate area – 990 m2 |
|
Drop Structure 4 |
8m ID (11m OD) x 44.77m deep; Approximate area – 2,170 m2 |
|
Maintenance Hole 3 |
3m ID x 31.47m deep; Approximate area – 1,027 m2 |
What is Concrete Protection Liner (CPL)?
Concrete Protection Liner (CPL) is an HDPE liner that embeds into the ID of the concrete pipe and protects concrete infrastructure from corrosion and degradation over time.
CPL features anchors that embed directly into the concrete pipe or structure, which ensures a durable, long-lasting barrier that safeguards the concrete. You get the durability of concrete pipe with the flow characteristics and corrosion protection of HDPE pipe.
The design life of CPL equals the design life of the concrete pipe, structures, or surfaces in which it is installed. In the event of a primary gasket failure or a crack in the concrete, CPL provides secondary containment, eliminating inflow and infiltration (I&I) and assuring no wastewater leaks into the environment.
Key Features
- Corrosion protection from MIC (microbial-induced corrosion) and Hydrogen Sulfide
- Elimination of I&I (inflow and infiltration)
- Excellent abrasion resistance
- Superior chemical resistance
- Exceptional backpressure resistance to groundwater
CPL in Action
|
Bonding |
Embeds directly into the concrete, becoming a structural part of the concrete. |
|
Application Process |
Applied to the precast or poured in place forms prior to the concrete being poured. |
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Moisture & Humidity |
Not affected by relative humidity or moisture content in the concrete. |
|
Backpressure Resistance |
Tested to both ASTM and Dibt (SKZ) backpressure standards. |
|
Maintenance & Longevity |
No need for reapplication; design life matches the design life of the structure. |
|
Elongation & Expansion |
High elongation and expansion properties, between 300% to 500%. |
Choosing the Right Installation Method
Concrete protection is project specific. The choice between poured-in-place and precast will depend on your project requirements.
For this application, CPL was used in poured-in-place reception shafts and chambers, and in precast large diameter pipe (2,438 mm).
Get in Touch with Our Concrete Protection Team
At Titan, we’re more than providers of solutions. We’re a highly responsive team who can help you through every stage of the design and installation process. We’ve supplied and installed more CPL than anyone else in North America.
Interested in learning about how CPL could work for your project? Fill out the form below to get in touch with our team.