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Applications:

CONSTRUCTION AND REHABILITATION OF RESERVOIRS AND DAMS

In the waterproofing of reservoirs the geomembrane must be adequately protected against the risk of puncturing and abrasion, in order to preserve its original characteristics of impermeability. Thanks to a high protection efficiency, the nonwoven geotextiles GEO are installed between the geomembrane and the irregular, rough laying surface, either soil or concrete.

In the construction of earth dams GEO perform the filtering function, preventing the soil being eroded by hydraulic forces.

In the rehabilitation of concrete dams GEO is placed between the surface of upstream dam face and the geomembrane used for its waterproofing. In this case GEO performs a double function: protection of geomembrane in contact with a rough surface and the drainage of seepage water present in the dam face.




USE OF NONWOVEN GEOTEXTILE:

Protection layer

level of stress according to site conditions example suggested product
(data sheet and specifications)
low/medium: protection interlayer between the geomembrane and concrete surfaces (upstream face of dams, bottom of reservoirs) GEO PP AG 400
 
high: protection layer between the geomembrane and irregular soil surfaces GEO PP AG 600
 
very high protection layer between the geomembrane and irregular soil surfaces with edged, sharp stones GEO PP AG 800


Filtration layer

level of stress according to site conditions example suggested product
(data sheet and specifications)
low/medium: fill material with rounded aggregates max size 100 mm GEO PP AG 150
 
high: fill material with rounded aggregates max size 200 mm, or with sharp aggregates max size 100 mm GEO PP AG 200
 
very high fill material with aggregate size > 200 mm GEO PP AG 300






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  OTHER APPLICATIONS
ROAD WORKS
RAILWAY WORKS
EROSION CONTROL WORKS
CONSTRUCTION OF TUNNELS
WASTE DISPOSAL WORKS


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