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White Polypropylene Non Woven Geotextile for Construction

Color: White
Certification: ISO
Feature: Corrosion Resistant, Oxidation Resistance, Wear-resistant
Usage: Insulation, Waterproof, Water Filter
Material: PP
Kind: Non-woven
Category

Product Description

Polypropylene Non Woven Geotextile

Geotextile is a synthetic permeable textile material used to improve the soil characteristics. It has the ability to separate, filter, reinforce, protect and drain when used in association with soils. Geotextiles are ideal materials for many infrastructure works such as roads,harbors, landfills, drainage structures, and other civil projects.

Function
The mode of operation of a geotextile in any application is defined by six discrete functions :
1.Separation
The separation function of geotextile is majorly used in the construction of roads. Geotextile prevents the intermixing of two adjacent soils. For example, by separating fine subgrade soil from the aggregates of the base course, the geotextile preserves the drainage and the strength characteristics of the aggregate material.
Some of the applicable areas are:

  • Between subgrade and stone base in unpaved and paved roads and airfields.
  • Between subgrade in railroads.
  • Between landfills and stone base courses.
  • Between geomembranes and sand drainage layers.

2.Filtration
The equilibrium of geotextile-to-soil system that allows for adequate liquid flow with limited soil loss across the plane of the geotextile.
Porosity and permeability are the major properties of geotextiles which involve infiltration action.
A common application illustrating the filtration function is the use of a geotextile in a pavement edge drain, as shown in the figure above.
3.Reinforcement
Introduction of geotextile in the soil increases the tensile strength of the soil the same amount steel does in concrete. The strength gain in soil due to the introduction of geotextile is by the following 3 mechanisms :

  • Lateral restraint through interfacial friction between geotextile and soil/aggregate.
  • Forcing the potential bearing surface failure plane to develop an alternate higher shear strength surface.
  • Membrane type of support of the wheel loads.

4. Sealing
A layer of non-woven geotextile is impregnated in between existing and new asphalt layers. The geotextile absorbs asphalt to become a waterproofing membrane minimisingverticalflow of water into the pavement structure.

Application
1. Road Work
Geotextiles are widely used in the construction of the road. It reinforces the soil by adding tensile strength to it. It is used as a rapid de-watering layer in the roadbed, the geotextiles need to preserve its permeability without losing its separating functions.

2. Railway Works
The woven fabrics or the non-woven ones are used to separate the soil from the sub-soil without impeding the groundwater circulation where the ground is unstable. Enveloping individual layers with fabric prevents the material from wandering off sideways due to shocks and vibrations from running trains.

3. Agriculture
It is used for mud control. For the improvement of muddy paths and trails those used by cattle or light traffic, nonwoven fabrics are used and are folded by overlapping to include the pipe or a mass of grit.
4. Drainage
The use of geotextiles to filter the soil and a more or less single size granular material to transport water is increasingly seen as a technically and commercially viable alternative to the conventional systems. Geotextiles perform the filtering mechanism for drainages in earth dams, in roads and highways, in reservoirs, behind retaining walls, deep drainage trenches, and agriculture.

5. River, Canals and Coastal Works
Geotextiles protect river banks from erosion due to currents or lapping. When usedin conjunction with natural or artificial enrockments, they act as a filter.

Technical data sheet

Serial number Itemindexspecification 150 200 100 250 300 350 400 450 500 600 800 Remark
1 Mass-area ratio deviation, % -8 -8 -8 -8 -7 -7 -7 -7 -6 -6 -6
2 Thickness, mm≥ 0.9 1.3 1.7 2.1 2.4 2.7 3.0 3.3 3.6 4.1 5.0
3 Amplitude, deviation,% -0.5
4 Breaking strength, KN/m ≥ 2.5 4.5 6.5 8.0 9.5 11.0 12.5 14.0 16.0 19.0 25.0 Vertically and horizontally
5 Breaking elongation,% 25~100
6 CBR bursting strength, KN≥ 0.3 0.6 0.9 1.2 1.5 1.8 2.1 2.4 2.7 3.2 4.0
7 Equifinal aperture mm 0.07~0.2
8 Vertical permeability coefficient, cm/s Kx(10-1~10-3 ) K=1.0 ~9.9
9 Ripping strength, KN≥ 0.08 0.12 0.16 0.20 0.24 0.28 0.33 0.38 0.42 0.46 0.60 Vertically and horizontally

 

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