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Roadrain - Roadway Drainage Geocomposite
Roadrain Roadway Drainage Geocomposite, engineered to improve drainage and/or frost heave potential, incorporates a compressive resistant, void-maintaining drainage system into the pavement structure. Roadrain is manufactured by fusing a medium weight nonwoven geotextile to a Tri-Planar Core. The Tri-Planar Core gives Roadrain its high compressive strength, minimizing geotextile intrusion enough to maintain a significant air void to provide a positive capillary break. Roadrain has excellent fluid transmission characteristics, equivalent to free draining base materials, it is readily available and installs quickly and easily.
Used under rigid or flexible pavements, Roadrain can:
- Quickly remove subsurface water from the pavement.
- Effictively separate structural fill from the native soil.
- Reinforce the base course and restrain a weak sub grade.
- Provide a positive capilary break.
- Reduce damage from frost heave and subsequent thaw.
Installed under the base aggregate, Roadrain significantly shortens the drainage path. The improved drainage provided by Roadrain increases the structural support of the pavement system, increasing the life and/or performance of the pavement.
Roadrain provides rapid removal of water. Placed directly beneath the pavement surface, Roadrain collects any infiltrating water before it enters the base.
At a lower depth, under frost-susceptible soils, Roadrain acts as a capillary break and helps eliminate frost heave.
