PP Needle Punched Nonwoven Geotextile

Nonwoven geotextiles are multi-purpose fabrics that are felt-like in appearance. PP needle punched geotextile is manufactured from short synthetic fabric (polypropylene fiber).The product is formed after the processes of opening,combing,mixing and disordering,lapping and needling.

PP Nonwoven Geotextiles has good impermeability and resistance to deformation, which allows geotextiles be widely applied in civil projects for separation,filtration,reinforcement, protection and drainage.

PP Nonwoven geotextiles are used as separation fabrics when higher water flow is required for the application. This can include acting as a separator between the drainage gravel backfill behind a retaining wall, wrapping the stone surrounding the pipe in a french drain, or as an underlayment below riprap. Nonwoven geotextiles can also be treated to resist water flow and used as a pavement underlay by binding with the asphalt to create a barrier to water.

Nonwoven Features

Excellent drainage performance
High strength,excellent tenacity
Anti-aging,anti-acid and alkali
Can accommodate irregular deformations
Creep, corrosion and abrasion resistance
Safe and easy for construction

Nonwoven Applications

Nonwoven geotextiles have a wide range of applications in civil environmental engineering and construction projects.

Filtration

When water passes from a fine-grained to a coarse grained layer, Non-woven Geotextiles can retain fine particles well. Such as when water flows from a sandy soil into a Geotextile wrapped gravel drain.

Separation

To separate two layers of soil with different physical properties, such as the separation of road gravel from soft sub-base materials.

Drainage

To drain liquid or gas from the plane of the fabric, which leads to draining or venting of the soil, such as the gas vent layer in a landfill cap.

Reinforcement

To improve the load bearing capacity of a specific soil structure, such as the reinforcement of a retaining wall.

Specifications

PP Needle Punched Non-woven Geotextile

Index Properties	Test Method	Unit
Weight	ASTM D5261	g/m2	100	125	150	200	250	300	350	400	450	500	550	600
Ultimate Tensile Strength	ASTM D4595	≥kN/m	3.5	5.0	6.0	8.5	11	13	15	18.5	21	23	26	28
Tensile Elongation	ASTM D4595	%	50
Grab Tensile Strength	ASTM D4632	≥N	270	360	460	550	750	930	1040	1180	1350	1400	1560	1720
Grab Elongation	ASTM D4632	%	50
Trapezoid Tear Strength	ASTM D4533	≥N	110	140	165	220	275	330	385	445	505	560	616	640
CBR Puncture Strength	ASTM D6241	≥N	500	770	1120	1600	2150	2430	2920	3390	3700	4110	5300	5500
Puncture Resistance	ASTM D4833	≥N	141	201	261	382	454	565	726	817	931	970	1028	1130
Drop Cone Resistance(hole-φ)	BS EN 918	mm	39	36	33	30	27	24	20	16	15	15	14	13
Hydraulic Properties
Apparent Opening Size O₉₀	ASTM D4751	≤mm	0.13	0.12	0.12	0.12	0.12	0.11	0.10	0.09	0.08	0.08	0.08	0.08
Permeability	ASTM D4491	cm/s	0.41	0.41	0.41	0.41	0.40	0.40	0.39	0.39	0.39	0.39	0.39	0.39
Physical Identification Properties
Thickness	ASTM D5199	mm	1.0	1.3	1.7	2.1	2.4	2.5	2.8	3.0	3.2	3.5	3.6	3.8
Roll Width	–	m	4-6
Approx Load Qty per 40HQ		M2	72000	57600	48000	36000	28800	24000	20400	18000	15600	14000	13200	12000