AKS concrete protection liners.

Anchor knob sheet (AKS) liners protect concrete from chemical attack, wastewater and moisture by locking into the structure itself. There's no adhesive bond to fail.

HOW IT WORKS

Locked in, not stuck on.

An AKS liner is an HDPE sheet with thousands of anchor knobs on its back face. The knobs are cast into the concrete, so the liner becomes part of the asset rather than a coating on its surface.

Blue HDPE anchor knob sheet on the production line

TWO WAYS TO INSTALL

New build or rehabilitation.

01New construction
Cast-in

The liner is fixed to the formwork before the pour. As concrete is placed, the anchors are embedded and permanently locked in.

Sewer tunnelsTreatment plantsPump stations Drainage structuresMarineChemical bunds
02Existing assets
Retrofit

The liner is installed onto the prepared surface and fully encapsulated with a specialised grout. Ageing infrastructure is protected without being replaced.

Existing sewersPump station upgrades Tunnel remediationBund rehabilitation

WELDING & TESTING

Fully welded. Fully tested.

Every joint is extrusion welded into one continuous, watertight barrier. That removes the joints and thin spots where applied coatings usually fail.

100%of welds spark tested
7 kVporosity test voltage
ITPsign-off at every hold point, records handed over

LIFECYCLE

100+

years of designed service life.

In non-UV environments. Meaning fewer recoating cycles, less maintenance and less disruption to operations over the life of the asset.

YOUR SYSTEM OR OURS

Infralinerâ„¢ or the AKS liner you've specified.

Specifying an AKS liner, or pricing one?

Send us the drawings. Whether it's Infralinerâ„¢ or the system you've specified, we'll come back with a quantity and a price.