DELTA®-MS 20 - Horizontal Underground Applications
Its high drainage capacity enables DELTA®-MS 20 to meet all requirements for occurring water problems in constructions of underground buildings.
With its 20 mm studs and very high drainage capacity, DELTA®-MS 20 is especially reliable for high performance seepage and drainage layers in tunnelling and other double shell horizontal or vertical constructions.
Studded membrane made of special, high-density polyethylene.
In constructions of underground buildings such as parking garages, DELTA®-MS 20 is installed horizontally between the foundation slab and the concrete floor to drain off water influx caused by an elevated groundwater level.
| Product name | DELTA®-MS 20 | |
|---|---|---|
| Color | chocolate brown | |
| Material | Recycled high-density polyethylene, encapsulated between two layers of special virgin HDPE | |
| Dimple height | approx. 3/4" (20 mm) | ASTM D6364-06 |
| Compressive strength |
apprx. 4,270 psf (200 kN/m²) |
ASTM D6364-06 |
| Fire resistance |
B2 B1 available upon request |
DIN 4102 |
| Flow rate / unit width @ Hydr. grad. 0.1; 100 kPa | 11.2 gal/min/ft (139 l/min/m) | ASTM D4716-08 |
| Flow rate / unit width @ Hydr. grad. 0.02; 100 kPa | 5.0 gal/min/ft (62.2 l/min/m) | ASTM D4716-08 |
| Air-gap volume between dimples | approx. 14 l/m² | |
| Water Penetration Resistance | > 120 psi (815 kPa) Watertight |
AATCC 127-1995 |
| Water Vapor Transmission | < 22 ng/(Pa s m²) |
ASTM E96, Meth. A |
| Vapor permeance | < 0.3 perms [grains/h/ft²/in Hg] |
ASTM E96, Meth. A |
| Temperature range | -22°F to +176°F (-30°C to +80°C) |
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| Chemical properties | Excellent chemical resistance, resistant to root-penetration, rot-proof |
|
| Toxicity | non-toxic, non-polluting |
|
| Roll length |
65' 7" (20 m) |
|
| Roll width |
6' 6" (2 m) |
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| Service life expectancy |
> 25 years (at pH between 4 and 9, and temperature below 25°C). Do not expose to UV light for longer than 30 days. |
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