Paradrain is a soil reinforcing geogrid with a unique feature; an integral drainage channel, built into the surface of the reinforcing element. This drain offers a drainage path for the rapid reduction of pore water pressures within marginal, poorly drained backfills. It accelerates the dissipation of pore pressures, and therefore consolidation, enabling the use of more marginal site won fills than is possble with traditional geogrids.

Paradrain consists of two elements: a soil reinforcement grid of polyester yarns encased in a polyethylene sheath and an integral drainage channel encased in a strip of thermally bonded nonwoven geotextile to stop the channel getting clogged with fines.

This reuse of marginal fills as structural backfill embraces the sustainability of scarce resources that must be considered on construction projects. This reduces the use of scarce and expensive aggregates, as well as reducing polluting truck movements.

 

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