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Concrete Embedment Liners

Home » Concrete Embedment Liners


Concrete Embedment Liners

Concrete Embedment Liners are designed to provide a synthetic lining surface on concrete structures or containments. Concrete Embedment Liners are thick sections of HDPE with a number of studs protruding from one side. The embedment liner is fastened to the inside of forms, before concrete is poured to create a surface that is lined with plastic. The concrete flows around the studs anchoring the sheet firmly in place.

Concrete Embedment Liners are ideal for protecting concrete from harsh environments. The thick sections of polymer are resistant to most acids, bases, hydrocarbons, vapors and microbiological materials, which are all environmental factors that can degrade concrete over time.

Concrete Embedment Liners can be installed onto existing concrete structures with the addition of a layer of grout to hold the liner in place. It is also possible to line a concrete vessel with a double layer system to allow for leak detection.

Installation
There are 6 steps in the installation of Concrete Embedment Liners; erecting the forms, lining the forms, placing the rebar, pouring the concrete, stripping the forms, and welding and testing the lining. Erecting the forms is normally done in different stages. The manufacturer's instructions for each Concrete Embedment material will give clear details about how the material should be placed into the forms. The reinforcing bar is placed in the form after the Concrete Embedment Liner. The manufacturer's instructions are to not attach the rebar to the Embedment sheet in any way. Once the concrete is poured, it needs to be vibrated in lifts so that there are no void spaces behind the Concrete Embedment Liner. Once the design strength of the concrete is achieved, the forms can be stripped. The seams in the Concrete Embedment Liner are extrusion welded and tested for any leaks.

Uses
  • Concrete Embedment Liners are used where the strength of a concrete tank is needed but when concrete does not have sufficient chemical resistance
  • This is especially common in industrial facilities where chemicals are being handled and stored
  • Tanks, trenches, and containment areas can be easily built using this method
  • A common problem is to create a tank for large volumes of a chemical when the only suitable containment is plastic
  • A Concrete Embedment Liner can provide permanent service in a plastic lined tank that can be any size that can be constructed with concrete
  • We start by building the inside forms for the tank out of wood. The Concrete Embedment Liner is fastened to the wood forms with the studs facing into where the concrete will be poured. Next, the reinforcing bar is placed around the tank (it shouldn't be attached to the liner)
  • Then the outside forms are built to enclose the reinforcing bar. Once the forms are complete the walls of the tank are filled with concrete
  • Allowed to cure, and the forms stripped.
  • The smooth face of the Concrete Embedment Liner is now lining the inside of the tank with the studs locked into the concrete
  • The Concrete Embedment Liner seams are now extrusion welded from the inside of the tank. This seals up all the seams and removes any attachment hardware that was used to hold the liner in the forms. The result is a concrete tank completely lined with plastic



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