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Preparation of Geotextiles
Anti-filtration function: It is used in the filter layer of embankment, dam, river and coastal stone fast, soil slope and retaining wall to prevent the sand and soil particles from passing through, while allowing water or air to pass freely.
Classification:
Geotextile Series
- Description
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- Commodity name: Preparation of Geotextiles
Anti-filtration function: It is used in the filter layer of embankment, dam, river and coastal stone fast, soil slope and retaining wall to prevent the sand and soil particles from passing through, while allowing water or air to pass freely.
Woven geotextile is a polypropylene, polypropylene flat silk as raw material, by at least two groups of parallel yarn (or flat wire), a group of longitudinal along the loom (the direction of the fabric traveling) called the warp, the other group of transverse arrangement is called the weft. With different preparation and weaving equipment and technology will be interwoven with the warp and weft yarns woven together into cloth, can be woven into different thicknesses and densities according to different ranges of use, the general woven geotextile thin longitudinal and transverse have a fairly strong tensile strength (longitudinal greater than the latitude), has a very good stability of the performance.
Product Performance
1、Reinforcement function: used for highway, railroad, airport, stone dam, slope embankment, retaining wall backfill, side of the Pei and other rock projects, dispersion of soil stress to increase the modulus of soil pieces, limit the soil pieces of slippage, improve stability.
2、Protection function: prevent the embankment from being washed by wind, wave, tide and rain, and used for bank protection, slope protection, bottom protection, preventing soil erosion.
3、Anti-filtration function: It is used in the filter layer of embankment, dam, river and coastal stone fast, soil slope and retaining wall to prevent the sand and soil particles from passing through, while allowing water or air to pass freely.
Specification
Grammage: 80g-600g/m2 , width: 2m-6m, roll length: 50m-100m, or according to customers' requirements.
Installation and construction precautions
1, geotextile can only be cut with a geotextile knife (hook knife), such as cutting on the site, the other materials must take special protective measures to prevent unnecessary damage to the geotextile due to cutting it;
2、While laying geotextile, all necessary measures must be taken to prevent damage to the following layer of material.
3、While laying the geotextile, care must be taken not to allow substances such as stones, large quantities of dust or moisture, etc., which may damage the geotextile, which may block the drains or filters, or which may cause difficulties in the ensuing connections, to enter the geotextile or the underside of the geotextile; and
4、After the installation is completed, all geotextile surfaces are visually inspected to identify all damaged landowners, marked and repaired, and to determine that the laying surface is free of foreign materials that can cause damage, such as broken pins and other foreign objects;.
5, the connection of geotextile must follow the following provisions: under normal circumstances, there can be no horizontal connection on the slope (connection shall be along the contour of the slope does not intersect with it), in addition to the place of repair.
6. If sewing is used, the sewing line shall be made of the same or more than the same material as the geotextile, and the sewing line shall be made of chemical UV resistant material. The stitching line and geotextile should have obvious color difference so as to facilitate inspection.
7. Pay special attention to the stitching during installation to ensure that no soil or gravel in the gravel cover layer enters the middle of the geotextile.
Product Performance Parameters
Serial No. Item Targets 20-15 30-22 40-28 50-35 60-42 80-56 100-70 1 Longitudinal breaking strength，KN/m 20 30 40 50 60 80 100 2 Dimensional rupture strength，KN/m 15 22 28 35 42 56 70 3 Elongation at break in the warp and weft directions，%≤ 28 4 Trapezoidal tearing strength (longitudinal),KN≥ 0.3 0.45 0.5 0.6 0.75 1.0 1.2 5 Survive by Breaking Through，KN 1.6 2.4 3.2 4.0 4.8 6.0 7.5 6 Vertical permeability coefficient (VPC)，cm/s 10-1-10-4 7 Equivalent aperture 095,mm 0.08-0.5 8 Mass per unit area，g/m² 120 160 200 240 280 340 400 Allowable Deviation ±10 9 UV strength retention1),%≥ As designed or contracted
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