Introduction

There 3 types of geotextiles defined by its material and production technique: Staple fiber needled nonwoven geotextiles / Long silk spunbond needled nonwoven geotextiles / Filament woven geotextiles.
The available geotextile colors are white / darkgreen / grassgreen / black;
The size of the product defined by weight/m2 , width and length;

1. Staple fiber needled nonwoven geotextiles
• Product introduction: PP or PET fiber is not the main raw material, the use of non-woven process production, with isolation, filtration, waterproof, reinforcement, protection, maintenance and other functions.
• Product specifications: 80g/m2-1500g/m2; Width 1-6 meters, length according to customer requirements.
• Product features: good flexibility, corrosion resistance, acid and alkali resistance, oxidation resistance; And has good permeability, filtration and isolation performance, convenient construction.
• Application: widely used in water conservancy, hydropower, roads, railways, ports, airports, sports venues, tunnels, coastal beaches, reclamation, environmental protection and other engineering fields.
• Product implementation standard: GB/17638-1998 "Geosynthetic short fiber needled non-knitted geotextiles"
• JT/T 520-2004 "Highway Engineering geosynthetic Short-fiber Needle-punched nonwoven Geotextiles"
• Technical specifications (GB/T 17638-1998)

Item	Unit	Value
Weight per unit area	g/m2	100	150	200	250	300	350	400	450	500	600	800
Unit weight variation	%	-8	-8	-8	-8	-7	-7	-7	-7	-6	-6	-6
Thickness	mm	0.9	1.3	1.7	2.1	2.4	2.7	3	3.3	3.6	4.1	5
Width variation	%	-0.5
Breaking strength	KN/m	2.5	4.5	6.5	8	9.5	11	12.5	14	16	19	25
Elongation at break	%	25-100
CBR mullen burst strength	KN	0.3	0.6	0.9	1.2	1.5	1.8	2.1	2.4	2.7	3.2	4
Equivalent aperture	mm	0.07-0.2
Veritcal permeability coefficient	cm/s	Kx(10-1 ~10-8), K=1.0-9.9
Tear strength	KN	0.08	0.12	0.16	0.2	0.24	0.28	0.33	0.38	0.42	0.46	0.6

 

2. Long silk spunbond needled nonwoven geotextiles
• Product introduction: using PP or PET as raw material, using melting spinning, air flow into the net, acupuncture consolidation process production with three-dimensional pore geotextiles.
• Product specifications: weight 100g/m2-800g/m2, width 4-6m
• Features: high mechanical index, good creep performance, strong corrosion resistance, aging resistance, heat resistance, excellent hydraulic properties.
• Application: it is mainly used for reinforcement, filtration, isolation and drainage of water conservancy and hydropower, environmental protection, highway, railway, dam, coastal beach, metallurgy and mining engineering.
• Product implementation standard: GB/T17639-2008 "geosynthetic long silk spunbond needle-punched nonwoven geotextiles"
• JT/T 519-2004 "Highway Engineering geosynthetic geotextiles of long silk Spunbond needle-punched nonwoven geotextiles"

Item	Unit	Value
Nominal fracture strength	KN/m	4.5	7.5	10	15	20	25	30	40	50
Longitudinal and transverse rupture strength	KN/m	4.5	7.5	10	15	20	25	30	40	50
Vertical and horizontal elongation	%	40-80
CBR	KN	0.8	1.6	1.9	2.9	3.9	5.3	6.4	7.9	8.5
Vertical and horizontal tear strength	KN	0.14	1.21	0.28	0.42	0.56	0.7	0.82	1.1	1.25
Equivalent aperture	mm	0.05-0.20
Vertical permeability coefficient	cm/s	Kx(10-1~10-3 ), K=1.0~9.9
Thickness	mm	0.8	1.2	1.6	2.2	2.8	3.4	4.2	5.5	6.8
Width deviation		-0.5
Weight tollerance	%	-5

 

3. Filament woven geotextiles
• Product introduction: high strength industrial synthetic fiber as raw material, through the weaving process of production.
• Specifications: Axial nominal breaking strength (KN/m) :35, 50, 65, 80, 100, 120, 140, 160, 180, 200, 250, width within 6 meters.
• Product features:
  High strength, small deformation, high comprehensive bearing capacity;
  Durability, not easy to deformation, decomposition, weathering, can keep its original line for a long time;>
  Corrosion resistance: acid resistance, alkali resistance, moth resistance, mold resistance;
  Water permeability: uniform pore structure, excellent water permeability.
• Application: widely used in river, ocean, harbor, highway, railway, wharf, tunnel, bridge and other geotechnical engineering. It can meet the requirements of filtration, isolation, reinforcement and protection in various geotechnical engineering, and is a kind of high value products in geotechnical engineering. 

Item	Unit	Value
Nominal fracture strength	KN/m	35	50	65	80	100	120	140	160	180	200	250
Breaking strength in MD	KN/m	35	50	65	80	100	120	140	160	180	200	250
Breaking strength in CD	KN/m	0.7 times of breaking strength in MD
Standard elongation	%	35 in MD, 30 in CD
Tear strength ini MD and CD	KN	0.4	0.7	1	1.2	1.4	1.6	1.8	1.9	2.1	2.3	2.7
CBR mullen burst strenght	KN	2	4	6	8	10.5	13	15.5	18	20.5	23	28
Vertical permeability	cm/s	Kx(10-2~10-5 ), K=1.0~9.9
Equivalent aperture	mm	0.05-0.50
Width variation	%	-1
Woven bag thickness variation under irrigate	%	±8
Woven bag variation in length and width	%	±2
Sewing strength	KN/m	half of nominal strength
Unit weigth variation	%	-5