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---++++!! Geo Textiles

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---++++ Nactory


Natural Fibre Non Wovens - Binder impregnated

http://www.dittrichvliesstoffe.de/nafacryl/naf_anwendbsp_kfz/3.jpg

http://www.dittrichvliesstoffe.de/nafacryl/naf_anwendbsp_kfz/4.jpg

http://www.dittrichvliesstoffe.de/nafacryl/naf_anwendbsp_kfz/5.jpg

http://www.dittrichvliesstoffe.de/welcome_d.php

---++++ Geo Grids

Mono-oriented geogrids 

Mono-oriented geogrids are two-dimensional structures produced from high density <br>
polymers using an extrusion process followed by a monodirectional stretching. This <br> 
exclusive and unique manufacturing process pemits a versatile and wide range product line. <br>
Geogrids are completely inert to chemical and biological conditions which normally <br> 
occur in soils, possess high tensile strength properties, and they are specifically <br> 
engineered for the reinforcement of soil

http://www.geogrids.com/photo/ttsamp.gif http://www.geogrids.com/photo/ttsamp_b.gif

Bi-oriented geogrids

http://www.geogrids.com/photo/ms.gif
http://www.geogrids.com/photo/lbosamp.gif http://www.geogrids.com/photo/mslbo02.gif

The standard geogrids are composed by joining together 3 or 5 layers of a grid. The great <br> 
number of strands allows to distribute the stresses in a very uniform way, and to obtain a <br> 
considerable "root-effect". Therefore a geogrid is particularly suitable for fine soils. <br> 
But  many layers of the base grid: this obtaining a high tensile resistant geogrid, suitable to <br>
carry intense loads and to stabilize soils with cavities or apertures produced by localized <br>
settlements (such as Karstic soils, permafrost, mining soils). Single-layer geogrids, with rigid <br>
knots and yarns having a relatively high thickness, enable to supply a considerable confining action.

They are particularly suitable to reinforce granular soils and conglomerates such as asphalt and spritz-beton.

http://www.fsiculvert.com/graphics/Geogrid-Installation.jpg
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---++++Geocells

http://www.tenax.net/images/geosynthetics/tenweb.jpg

http://www.geogrids.com/photo/tenweb_a.gif http://www.geogrids.com/photo/tenweb_b.gif 

http://www.geogrids.com/photo/tenweb_c.gif

Ageo cell is a honeycomb three-dimensional structure, made from polyethylene using a single <br>
continuous extrusion process. Therefore, a monolithic structure, very resistant to tensile forces webs<br> 
can be expanded or collapsed like an accordion: it can be transported and stocked in a very compact <br>
form, and expanded at the job site to form a set of regular hexagonal cells, all linked together. Once, <br>
expanded,the web becomes dimensionally stable and provides an effective confinement for loose materials <br>
placed in each single cell. <br>
Geocells provides soil confinement without movement, even on very steep slopes or with dragging<br>
 forces, like in a stream flow. <br>


The junction of geocell will allow the passage of water between adjacent cells. All the cells are hydraulically <br>
connected and the composite structure  presents good permeability. <br>
System performance is enhanced via increased interaction between adjacent cells, including: <br>
• improved drainage between cells <br>
• vegetative root penetration between cells <br>
• increased interlock of infill material between adjacent cells<br>
Also, slope stability, channel lining and load support for soil.

http://www.geofabrics.com.au/images/ecocell2.jpg

http://www.dswa.com/facilities/shared_graphics/P3250002.JPG
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---++++Geocomposites

http://www.geogrids.com/photo/tn.gif http://www.geogrids.com/photo/mdp.gif

The combination of the geotextile (filtering action), geomembranes (waterproofing properties) and
geonets (drainage and load distribution) offers a complete system of filter-drainage-protection, which is very compact and easy to install.



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---++++ Geomats

http://www.geogrids.com/photo/multimat_a.gif

Geo mats are polypropylene products studied for protection and growing of grass on slopes subject to 
surface erosion. Mats are three-dimensional products having different thickness of about 20 mm. Mats are 
produced by means of extruded and bi-oriented polypropylene grids laid one upon another and tied up by 
means of a black polypropylene yarn. A thick structure, made of factory folded grids, is bounded by two layers of flat geogrids, giving high tensile strength, compression resistance and flexibility.

http://www.geogrids.com/

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---++++ Biomats

http://www.tenax.net/images/geosynthetics/ecomat.jpg

Biomats are fiber mattresses made from straw and coconut capable of forming an excellent anti-erosion 
protection on not-excessively inclined slopes where a suitable underlying vegetative base capable of 
permitting planting already exists. Since the biomat naturally decomposes during a biological cycle, the 
decomposed fibers, essentially made of cellulose and ligneous material, will act as an organic fertilizer. Furthermore, the coconut fibers permit the retention of humidity increasing the permeability of the soil whereas the straw fibers, improving the roughness of the underlying base and hence reducing the runoff velocity of the water and retaining the soil particles.

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-- Openloop.JaynePotter - 13 Jun 2005
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Openloop.GeoTextilesr1.4 - 13 Mar 2006 - 17:47 - RachelWingfield
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