Secudrain® is used for the drainage of areas or structures which are in contact with soil, including excavation backfill. It will discharge percolation water, thereby reducing the hydrostatic pressure on the structure and its sealing system.
Secudrain® geosynthetic drainage systems consist of a statically stable three-dimensional, wave-structured drainage core, manufactured from polypropylene (PP) monofilaments combined with at least one filter-stable Secutex® non woven geotextile.
Due to the high void ratio of the drainage core (at least 95 %), Secudrain® has a high water discharge capacity in all directions.
The relationship between the water discharge capacity and confining stress has been examined in laboratory tests and is documented in pressure-creep-curves. Secudrain® flow capacities are determined based upon the thickness expected under the specific confining stress, which can be correlated to long-term laboratory test results. Therefore, no special reduction factors are required in the drainage calculations.