NONWOVEN GEOTEXTILES
NONWOVEN GEOTEXTILES

WASTE DISPOSAL SITES

It is a non-woven geotextile made by high tenacity polypropylene staple fibres, needle-punched and/or thermocalandered, without resins or glues, UV stabilized. It is not toxic and does not pollute the environment. It is resistant to alkalis, acids and organic substances. Moulds, rodents and microorganisms cannot attack GEO. Its qualities and properties are not substantially modified by climatic factors like frost, heat, humidity etc.

TECHNICAL FEATURES

  • USE: as protection layer for a waterproofing membrane / as separation and filtration layer in the capping works
  • INSTALLATION: at the base of landfill, between the geomembrane and the drainage gravel / at the top of landfill between the covering soil and a drainage layer
  • REFERENCE STANDARD: EN 13257 Geotextiles and geotextile-related products - Characteristics required for use in solid waste disposals; EN 13265 Geotextiles and geotextile-related products - Characteristics required for use in liquid waste containment projects.
  • RELEVANT CHARACTERISTICS: protection efficiency (for protection) tensile strength, static and dynamic puncture resistance, permeability normal to the plane, characteristic opening size (for separation and filtration), durability.
  • RECOMMENDED PRODUCTS: for protection function, to be chosen according to the height of landfill and to the characteristics of drainage gravel, for example GEO PP AG 800 to 1500; for separation and filtration function, GEO PP TC 120 or TC 200 or TC 300 is recommended.

UNIT WEIGHT: for protection, 800 – 2000 ; for separation and filtration, 150 – 400 g/m2
ROLL SIZE: max roll width 650 cm

  • CE MARKING
  • Asqual France
  • NorGeoSpec Scandinavia
  • RVS Austria, IVG Germany

In our internal laboratory the mechanical and hydraulic characteristics of the final product are tested, as well as the quality of the fibre.

GEO INSTALLATION

geotextile non woven for the landfill

Landfills are actually a needful part of waste management: they must be properly controlled and isolated.

Geotextiles help to make them safe.

GEO can be installed Why?
In the lower liner barrier system, under the solid waste To protect the membrane that prevents leachate and gases from penetrating the underlying soil contaminating groundwater and the surrounding environment
Between the waste and the bottom drainage gravel layer As a filter to prevent drainage gravel from being clogged with fine waste particles
In the final cover system To control surface erosion and prevent rainwater from entering the structure and creating further leachate

We supply GEO also for manufacturing the drainage composites which are used and installed inside the waste containment facilities: they are composed by 2 non-woven geotextiles heat bonded to a geonet or cuspated sheet and are placed above the geomembrane. In this case geotextiles perform separation and filtration functions.

FUNCTIONS

FILTRATION

SEPARATION

PROTECTION

Guaranteed functions by

Geotextile non woven made by PP high tenacity, UV stabilized

APPLICATIONS

LAYDOWN AND USEFUL SUGGESTIONS

Just like all materials for Civil Engineering, non woven geotextiles should be handled, stocked and transported with appropriate care in order to avoid alteration of characteristics required for each job. Hereunder some suggestions about handling, stocking, transportation and installation.

SITE PRELIMINARY WORKS
Soil must be duly prepared and sharp stones removed before laying the geotextile. During the laying the non-woven is subjected to different mechanical stress, according to the characteristics of soil, covering material and method used for laying down and compacting it. The mechanical characteristics of the non-woven have to be always selected in accordance to the specific conditions of installation.

OVERLAPPING

The overlapping is connected to different possible situations:
 At least 30 cm when the soil is solid enough;
At least 50 cm when the soil can be easily deformed;
At least 50 cm for the protection of waterproofing sheets;
At least 1 m in case of underwater installation.

 

UV PROTECTION
GEO® is produced from synthetic fibres, consequently is subject to ageing due to long exposure under UV rays. .

 

COLD TEMPERATURE IS NOT A PROBLEM
Low temperatures do not affect the characteristics of geotextiles.

 

CARE ABOUT HIGH TEMPERATURES
High temperatures might affect the characteristics of geotextiles. Keep the supplier informed about how you intend to use the material, in order to get the suitable type.

For loading/unloading operations a frontal-loader with long stick or long shovels is necessary.
Stick or shovels should be at least 2/3 of the width of roll, in order to avoid damages to the carton/plastic core of roll.
In case above equipments cannot be used (it may happen on a site), ropes, chains and earth-moving machines may be used.

 

Rolls of GEO have a carton/plastic core inside and are externally protected by a foil of LDPE. Under these conditions the rolls can be stocked in open air space, without any relevant variation of the original characteristics. The ideal situation is however a covered stock area.

In case above indications cannot be followed, to protect rolls from contamination, UV rays, humidity etc, we suggest:

- To avoid direct contact between the soil and the rolls, especially when they are not used in a short time;

- To cover the rolls with a resistant and dull PE sheet;

- To ask supplier for having a suitable packing.

 

REQUEST INFORMATION

OTHER APPLICATIONS

Roads and highways

Railways

Tunnels

Temporary Roads

Roofing

Coasts and riverbanks

Reservoirs and dams

Geo&Tex 2000 Spa

HEADQUARTERS AND FACTORY
Via XXV Aprile, 3
36029 Valbrenta VICENZA
TEL: +39 0424 98330
FAX +39 0424 98593

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LOCAL UNIT 2: Via Zannini 128
36029 Valbrenta VICENZA
LOCAL UNIT 3: Via Giusti 54/56
36029 Valbrenta VICENZA

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NONWOVEN GEOTEXTILES

Passion, technology, and quality:this is the mix which allowed  Geo&Tex 2000 spa to achieve  the affection of many markets in the field of non woven geotextiles, reaching very good results in a short time.

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