PM 20

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PM 20

Dimpled sheet

PM 20 is a high-performance drainage membrane and represents the ideal solution for the drainage of rising water, seepage water and back­water. It offers the drainage capacity of conventional dimpled membranes many times over.

The dimple height of 20 mm offers an enormous drainage capacity of approx. 9 l/s·m.

The pressure resistance of approx. 180 kN/m² ensures a high level of security and corresponds to a compressive strength of 18 t per m2.

Accumulated water can then already be drained in the shell construction phase.

This way, any water that accumulates as the groundwater level rises is securely dis­charged into the drainage line, where it can be pumped out.

Material HDPE approx. 1.000 g/m²
Dimple height 20 mm
Compressive strength approx. 180 kN/m²
Drainage capacity approx. 9 l/s·m
Air volume between the dimples approx. 14 l/m²
Temperature resistance –30 °C to +80 °C
Fire behaviour class E; B1 acc. to class A possible for special structural requirements
Roll length 20 m (Additional lengths on request)
Roll width 0,5 m / 1,0 m / 1,5 m / 2,0 m
Chemical properties chemical-resistant
Biological properties resistant to bacteria and fungi, rot-resistant, root-resistant
Physiological properties safe for drinking water

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