Biogenic corrosion of sewers can be a serious problem for asset Owners. To rehabilitate corroded sewers, or to protect new ones, SewperCoat is a unique solution providing the ease of use of cementitious mortar with an unequalled durability.
SEWPERCOAT, WHAT TO REMEMBER?
- A unique, proven and efficient repair strategy
- Able to resist the most severe biogenic corrosion conditions
- Induces a “bacterio-static effect” which inhibits the acid generation at the source
- More than 30 years of outstanding field performance
- Ultimately, SewperCoat provides a unique and long-lasting solution to sewer Owners
BIOGENIC CORROSION: A SERIOUS PROBLEM FOR ASSET OWNERS/OPERATORS
When the right conditions exist in a sewer system, acidophilic bacterial activity produces sulfuric acid that is capable of corroding and destroying up to 1″ (25 mm) of concrete per year. Biogenic corrosion is a serious problem for owners, and corrosion may cause significant capital expenditures to maintain wastewater infrastructures. Biogenic corrosion can develop on any exposed part of the sewer network lowering the surface pH down to 1, corroding concrete, steel, and cast iron within a few years.
REPAIRING WITH ORGANIC POLYMER? IT FAILS TOO OFTEN
One costly repair strategy is to attempt to protect wastewater infrastructure with acid resistant materials: organic resin, polymer, plastic sheets, fiberglass inserts, etc. While these repair materials can withstand low pH, the acidophilic bacteria continue to breed and develop on these surfaces. Eventually the bacteria will make its way through any pin hole, joint, or around the manhole frame or pipe connection. The use of polymer materials underground raises the challenge of achieving surfaces dry enough to permit the proper bonding of these systems, not to mention the health and safety issues of working with solvents in confined spaces.
A UNIQUE CHEMISTRY FOR A UNIQUE PERFORMANCE
SewperCoat proposes a unique, proven, and radically different repair strategy; repair with an easy-to-apply cementitious system able to resist most severe biogenic corrosion conditions. Because of its very specific chemistry – 100% calcium aluminate – SewperCoat includes a “bacterio-static effect” that drastically slows down the acidophilic bacteria ecosystem, inhibiting the acid generation at the source itself. SewperCoat provides a long-lasting solution to owners of infrastructure threatened by biogenic corrosion. SewperCoat also is a useful tool to seal the underground structures from costly inflow and infiltration that stress already over capacity treatment facilities.
THE EASE OF USE OF A CEMENTITIOUS MORTAR… WITH AN UNEQUALLED DURIBILITY
SewperCoat is the only proven 100% pure-fused calcium aluminate mortar able to resist the most aggressive biogenic corrosion conditions found in wastewater infrastructures. Its unique combination of calcium aluminate cement with manufactured calcium aluminate aggregate (both have the same chemistry) delivers a unique combination of key benefits to the asset Owner. Unlike other inert materials like epoxy, vinyl, pvc or HDPE, SewerCoat bonds well to moist surfaces, does not induce holidays and pin holes and provides a rock-solid structural rehabilitation within a few hours. SewperCoat’s specific mineralogy provides a protective-reactive barrier to biogenic corrosion conditions, as proven by 25 years of outstanding field performance.
DON’T BE FOOLED
Don’t be fooled by products that claim to be 100% calcium aluminate mortar. Unless both the product’s mortar and aggregate are calcium aluminate it is NOT equal to SewperCoat and will fail under harsh H2S conditions.
For more information visit http://www.sewpercoat.com.
KEY BENEFITS
