Drainage Geocomposites

Drainage Composites are made up by associating , during production, a draining core layer (it can be either a mat, a net or a moulded element) between two layers of geotextiles. The composite is capable of providing either filtering, separation and, sometimes, also other functions such as protection. Even with the multiple uses the main purpose is the drainage one, for this reason, the long term draining performances of the composite must be well known (compressive creep flowarate variations, filter efficency etc.).