GeoTextile
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1. Road construction, air strips and runwaysOpen or Close
Using El Eman Geotextile between the base aggregate and subgrade soil improves the pavement performance. Without El Eman Geotextile separator , The aggregate from the base course will over time break into the subgrade , So, using El Eman Geotextile will increase
Road Repair:
AL Eman Geotextile can be used as inter layers under or within the overlay. Also act as moisture barriers , preventing moisture from entering through the cracks of distressed pavement . -
2. Railway track construction.Open or Close
Using suitable grade of AL Eman Geotextile acting primarily as a separation layer, the migration of the soil into the ballast is prevented and the integrity is prevented and the integrity and the functioning qualities of the ballast are maintained , enabling safer and faster
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3. Pipeline foundation and protectionOpen or Close
El Eman Geotextile have been found to provide a film foundation along with aggregates for pipelines passing through soft and saturated subgrates.
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4. Drainage and Lowering of Ground WaterOpen or Close
One of the most cost effective means for lowering of ground water and providing subsoil drainage is by having trenches filled with open graded aggregate and covered with geotextiles.
Used primarily as filter fabrics geotextiles allow an unimpeded flow of water into the drain whilst preventing the migration (piping) of the soil fines into the drainage media . -
5. Pavement overlay.Open or Close
El Eman Geotextile helps in solving this problem by water proof capability and the stress absorption capabilities of the paving fabric interlayer system.
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6. Costal protection.Open or Close
Using suitable grade of El Eman Geotextile will be acting as a filter by allowing only the water to pass through soil particles.
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7. Ponds and canals.Open or Close
AL Eman non-Woven stable fiber geotextiles were developed in the 1998's in answer to the increasing hydraulic demands placed on revetment systems. The unique characteristics of staple fiber non-waven geotextiles allow for coastal engineers to specify mechanical and hydraulic criteria to meet the needs of the most rigorous applications.
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8. Roofing system.Open or Close
The upside down roofing and thermal insulation system is the most popular roofing system in our country El Eman Geotextile placed above the thermal insulation protects it from puncture damage by any gravel or tile layer.
It also prevents the migration of fines into the thermal mechanisms and allows any entrapped moisture or gasses vent out.
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9. Membrane protectionOpen or Close
Synthetic geomembranes are sensitive to mechanical damage and need protection to resist puncture and wear due to abrasion caused by sharp stones in the subgrade of the overlaying layer . The effective puncture resistance of the geomembranes can be considerably increased by using appropriate needle-punched nonwoven geotextile .
The primary function of the geotextile is to dissipate the point stresses imposed by the overlying material and ensuring that the protected membrane is not stressed to failure.
Also in most membrane protection application the geotextile performs the important function of lateral drainage of water/gasses
Geotextile Properties to be considered are :
The dynamic puncture strength [Cone drop test]
Static puncture strength [CBR Test]
Thickness
Transmissivity [Lateral Drainage] -
10. Waste containment system.Open or Close
Typical modern day waste containment system employ geotextiles in varied uses.
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11. Landscaping.Open or Close
Terrains across the Middle East are exposed to extremely hot and arid climates that result in greater evaporation than precipitation. Evaporation draws saline water to the surface from the water table below in a continually rising process generally referred to as "Capillary Suction"
At the surface the water evaporates leaving behind the salt content . The presence of saline contents in these soils hampers healthy vegetative growth. One of the most cost effective and proven methods of controlling the capillary rise of saline water is by introducing a capillary break between the subgrade and the top soil.
The capillary break consist of a coarse granular layer that creates voids in the interstices that impede the rise unprotected, the fines from the top soil will migrate into granular layer and very soon the voids will be filled with the fines , thus negating the design intent of the granular layer .
A layer of Geotextile place at the granular layer/top soil interface will prevent the migration of the fines from the top soil into the granular layer thus maintaining indefinitely the designed functional characteristics of the granular layer.