Nonwoven Fabric arr_right_inav

Geosynthetics-Filament Geotextile

Description Specifications Scope of Application FAQ Download

Description

Polyester filament needled geotextiles is a non-woven fabric made of needle-punched reinforced polyester filaments.It does not require heat treatment and does not contain any chemical additives. it is an environmentally friendly building material. YH Polyester filament needled geotextiles are made of 100% virgin polyester with excellent aging resistance, excellent mechanical properties, excellent anti-aging, corrosion resistance and excellent water permeability. It can adapt to the uneven surface, the construction method is safer, simpler and more efficient,and it can solve the construction more economically and more durable.

Specifications

Characteristics and Packaging

Item	Description
Packaging	Roll
Width (m)	2~6
Length (m)	50~200
Mass per unit area(g/m2)	150~800
Roll Size (m2/roll)	100~1200

Support for customization of other sizes.

Properties

Properties	Unit	Inspection Standards	Product Specification
Properties	Unit	Inspection Standards	G150	G200	G300	G400	G500	G600	G800
Mass Per Unit Area	g/㎡	ISO 9864	150	200	300	400	500	600	800
Thickness 2 pKa	mm	ISO 9863-1	1.2	1.6	2.2	2.8	3.4	4.2	5.5
Tensile Strength	kN/m	ISO 10319	9	12	18	24	30	36	48
Rate of Deviation in Mass Per Unit Area	%	/	-5
Width Deviation Rate	%	/	-0.5
Thickness Deviation Rate	%	/	-10
Elongation at Tensile Strength	%	ISO 10319	40~80
Grab Tensile Strength	N	ASTM D 4632	500	700	1100	1400	1900	2400	3000
Grab Elongation	%	ASTM D 4632	40~80
CBR Burst strength	N	ISO 12236	1600	1900	2900	3900	4300	6400	7900
Trapezoidal Tear Strength	N	ISO 9073-4	220	290	430	570	710	830	1100
Apparent Opening Size 090	mm	ISO 12956	0.05~0.3
UV Resistance After 500 hrs	%	ASTM D 4533	85

Note: All values are based on test results determined under laboratory conditions and with product samples taken from original stock.

For requirements of other models, you can communicate with our technical personnel about the feasibility for customized production.

Application Instructions

【Construction Technology】
Base inspection→On-site measurement and lofting→Laying-Lap treatment→Inspection and acceptance
【Construction key points】
Installation Requirements:

· Base inspection: Check whether the base layer is flat, firm, and free of large vegetation, protruding branches, sharp rocks, voids, or other objects that may damage the woven geotextile during installation.

· Trial Placement: Determine the geotextile dimensions based on site conditions, cut accordingly, and conduct a trial placement. The cutting dimensions must be accurate.

· Check whether the overlap width is appropriate. The overlapping areas should be flat and moderately tensioned.

· Geotextiles can only be cut with a geotextile knife (hook knife). If cutting is performed on-site, special measures must be taken for other materials to prevent damage caused by cutting the geotextile.

· During geotextile installation, the construction unit must take necessary measures to prevent damage to the underlying layer of material.

· Geotextile seams must be double-stitched. The stitching thread must be made of the same material as or superior to the woven geotextile and must be chemically resistant and UV-proof. The stitching thread should contrast distinctly with the geotextile for easy inspection. When stitching overlapping sections, the thread should be straight, and stitches should be evenly spaced. During stitching, special care must be taken to ensure no soil or gravel from the overlying layer enters the middle of the geotextile. After stitching, inspect whether the geotextile is laid flat and free of defects.

· After installation, visually inspect all geotextile surfaces to identify and mark any damaged areas for repair, ensuring no foreign substances that could cause damage remain on the installation surface.

· At stitched joints, re-stitching must be performed for repair, ensuring the ends of any skipped stitches are re-stitched.

Advantages

· High Puncture Strength: Polyester filament geotextiles can ensure the three-dimensional porosity of geotextiles, which is conducive to the realization of excellent hydraulic properties. The puncture strength of geotextiles have great advantages, especially suitable for reinforcement of retaining walls and embankment. Anti-ultraviolet light has extremely high anti-ultraviolet ability.

· Creep Resistance: Many engineering problems involve creep. Polyester filament geotextiles have better creep resistance than other geotextiles, so they have better long-term durability

· Excellent UV Resistance: Compared with other polymer geotextiles polyester continuous filament geotextiles have more excellent UV resistance and are more suitable for short-term exposed construction environments and applications

· Easy To Line: Polyester spunbonded needle-punched geotextile has low needle-punched density, the fabric surface is soft and not stiff, more convenient to lay and install, and fits the working surface better.

Scope of Application

Mainly used for filtration of dams and slopes in water conservancy projects, isolation and seepage prevention of channels; foundation isolation, filtration, drainage of highways, railways and airport runways, reinforcement of soil slopes, retaining walls and road surfaces, soft foundation treatment in port projects, reinforcement and drainage of beach embankments, seaport terminals and breakwaters. Polyester filament geotextiles have been widely applied in the field of infrastructure construction and are gradually being used in a broader range of areas.

FAQ

Q1: What is a geomembrane?

A geomembrane is a synthetic membrane liner or barrier used to control fluid migration in a wide range of civil, environmental, and industrial applications.
Q2: Why should I choose a geosynthetic barrier instead of traditional clay liners?

Geosynthetics offer superior impermeability, faster installation, reduced thickness requirements, and higher chemical resistance compared to traditional compacted clay liners.
Q3: How long does a geomembrane last?

Depending on the material and environmental conditions, service life can range from 30 to over 100 years.
Q4: Is it safe for drinking water or sensitive environmental applications?

Yes, certain geomembranes are certified safe for potable water use and meet environmental regulations like NSF or GRI-GM standards.
Q5: What factors should be considered when selecting a geomembrane?

Key factors include chemical resistance, mechanical strength, UV resistance, site conditions, expected service life, and installation method.
Q6: How thick should the geomembrane be?

Common thicknesses range from 0.5 mm to 3.0 mm, depending on application requirements and site-specific conditions.
Q7: Are there international standards or specifications for geomembranes?

Yes, ASTM, ISO, and GRI (Geosynthetic Research Institute) standards provide guidelines for testing and performance.