ParaDrain can be used for reinforcement and drainage.
They are manufactured using a proven technology of the ParaGrid reinforcing products in combination with heat-bonded non woven continuous filament geotextiles as filters.
The reinforcing function is provided by high tenacity polyester yarns encased in a durable sheath of polyethylene which is profiled to provide a drainage channel. The nonwoven geotextile acts as a filter to allow pore water to escape into the drainage channel from the soil mass in which the product is placed.
ParaDrain has good bidirectional strength and is available in strength from 50 kN/m to 200 kN/m in the main direction (longitudinal) and 5 or 15 kN/m in the secondary direction.
ParaDrain is for use in traditional geogrid applications (as ParaGrid) but in conditions in which the soil to be reinforced has particularly poor drainage properties. Such soils include those with a high fines content whose shear strength and reinforcement bond characteristics are adversely affected by the presence of water.
By providing a regular array of positive drainage ParaDrain allows water, trapped in the soil to be reinforced to rapidly dissipate thus enabling it to gain early strength and improve its bond with the reinforcement thereby stabilising the soil mass quickly and effectively.
ParaDrain enables the use of marginal filling materials which would be otherwise removed from the site and replaced with high quality soil.
ParaDrain is suitable for structural applications where a long term design life (50-120 years typically depending on the different existing regulations) is required; its typically used for the reinforcement of steep fill slopes).
ParaDrain is BBA Roads and Bridges certified, for more details or to request a copy of the documents, please contact us.
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