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A geotextile filter layer withholds solid components, whilst allowing liquids to pass almost freely perpendicular to the filter plane.
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Drainage is the collection of precipitation, groundwater and other liquids or gases which have to be discharged. Drainage systems are supplied as single elements or composites consisting of at least one filtering layer and one percolation layer.
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Geotextiles separate adjacent soil types or fill materials preventing them from becoming intermixed. They are used in the form of durable, robust nonwoven or woven fabrics and/or composites manufactured of synthetic raw materials able to withstand high loads.
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Geomembranes, coated and non-coated structures need to be protected against mechanical damage. Without protection layers, damage would occur from sharp-edged irregularities of the underground or the filling material.
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When used for reinforcement purposes, geotextiles, geogrids and composites are placed below or between soil layers to take up tensile forces and thereby improve mechanical properties.
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Sealing is indispensable for environmental and groundwater protection and contributes substantially to the fitness for use and service life of buildings.
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In geotechnology and hydraulic engineering, earth materials in particular are "packed" in flexible tubes, sacks and containers.
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Three-dimensional geosynthetics and composites prevent the removal of soil particles by water and wind. In nature, it is the plants with their roots that prevent the soil from being carried away.
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