Concrete structures must have:
1. Continuous seal systems (asphalt points, sealant sheets, etc.)
2. Effective and lasting drainage systems that can remove water at working pressure (active earth pressure)
INTERDRAIN offers 2 drainage systems:
GM RANGE:
1. Configuration: geotextile + geonet (the geotextile in contact with the ground).
2. Functions: filter (geotextile) + drainage (geonet).
3. It must be accompanied by a continuous seal system.
GMG RANGE:
1. Configuration: geotextile + geonet (the geotextile in contact with the ground) + geotextile (waterproof side).
2. Functions: filter (geotextile) + drainage (geonet) + sealant protection (geotextile).
3. It must be accompanied by a continuous seal system.
4. Recommended for taller structures (> 5m), to protect the seal.
Long-term behaviour:
Comparision between INTERDRAIN and honeycomb geocomposite (mid-range "eggbox").