Geotextile Separation Underlayment Permeable Filter Fabric

The primary function of geotextile separation underlayment is to create a barrier between different layers of soil or aggregate materials, preventing them from mixing or intermixing. By providing separation, it helps to maintain the integrity and stability of the constructed layers. For example, it can be used to separate the subsoil from the aggregate base in road construction or to separate different layers of soil in a retaining wall.

Permeable filter fabric also acts as a filtration medium by allowing water to pass through while preventing the migration of fine particles or soil fines. This property is beneficial in applications where drainage is required while preventing the clogging of underlying drainage systems or structures. The geotextile's permeability allows water to flow through, reducing the buildup of hydrostatic pressure and preventing the loss of soil fines.


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Product Details

When it comes to achieving long-lasting soil stabilization, erosion control, and effective drainage, Geotextile Separation Underlayment Permeable Filter Fabric plays a vital role in modern civil engineering and landscaping projects. This high-performance synthetic fabric is specifically engineered to separate, reinforce, filter, and protect soil structures in both residential and commercial infrastructure developments.


What is Geotextile Separation Underlayment Permeable Filter Fabric?

Geotextile Separation Underlayment Permeable Filter Fabric is a robust and permeable textile material made from polypropylene or polyester. It is commonly used beneath roads, pavers, driveways, retaining walls, and drainage systems. Its core function is to prevent the mixing of soil layers, facilitate water filtration, and extend the life of paved and unpaved surfaces.

This advanced geosynthetic solution acts as a separator between subgrade and base materials, making it ideal for projects where soil integrity and water flow are critical.


Key Features of Geotextile Separation Underlayment Permeable Filter Fabric

Excellent Permeability
The permeable structure of the Geotextile Separation Underlayment Permeable Filter Fabric allows water to pass through while blocking the movement of soil particles, thus preventing clogging and water accumulation.

Soil Stabilization
It provides crucial stabilization by separating fine soil from aggregates, reducing rutting and structural failure in load-bearing areas like roads and parking lots.

UV and Chemical Resistance
Designed to withstand exposure to sunlight, alkaline soils, and various contaminants, it ensures long-term durability even in harsh environments.

Easy to Install
Lightweight, flexible, and easy to cut and roll out, Geotextile Separation Underlayment Permeable Filter Fabric is user-friendly and reduces installation time and cost.

Eco-Friendly and Cost-Effective
Its use reduces the need for excessive fill materials and extends the life of infrastructure, offering a high return on investment.


Main Applications of Geotextile Separation Underlayment Permeable Filter Fabric

The Geotextile Separation Underlayment Permeable Filter Fabric is an essential product in the construction and landscaping industries, suitable for:

  • 🟢 Driveways & Road Construction

  • 🟢 French Drains & Trench Drainage

  • 🟢 Retaining Walls

  • 🟢 Garden Landscaping & Erosion Control

  • 🟢 Paver and Patio Base Stabilization

  • 🟢 Railway Subgrade Support

  • 🟢 Landfill and Stormwater Management Systems

From large-scale infrastructure to residential projects, this versatile fabric helps improve foundation performance while ensuring proper drainage.


Technical Specifications

PropertyValue
Product NameGeotextile Separation Underlayment Permeable Filter Fabric
MaterialWoven / Nonwoven Polypropylene / Polyester
Weight100gsm – 600gsm
Width1m – 6m (customizable)
Permeability≥ 10⁻³ cm/s
UV ResistanceExcellent (UV stabilized)
Tensile Strength≥ 8 kN/m to ≥ 50 kN/m
Elongation≤ 50%
ColorBlack / White / Grey
LifespanUp to 25+ years (when buried)
StandardsASTM D-4491, D-4632, ISO 10319

Why Choose Geotextile Separation Underlayment Permeable Filter Fabric?

Choosing Geotextile Separation Underlayment Permeable Filter Fabric ensures that your construction project maintains its structural integrity while allowing proper drainage. Whether you’re working on a simple garden path or a multi-million-dollar roadway, this filter fabric is engineered to:

  • Prevent soil contamination and mixing

  • Improve load distribution

  • Support long-term drainage

  • Mitigate erosion

  • Prolong the life of paved structures

By investing in high-quality Geotextile Separation Underlayment Permeable Filter Fabric, you are ensuring sustainability, functionality, and cost-efficiency.


Installation Tips

  1. Site Preparation: Clear the installation area of vegetation, rocks, and debris.

  2. Roll Out the Fabric: Place the Geotextile Separation Underlayment Permeable Filter Fabric directly over the prepared surface.

  3. Overlap Edges: Ensure overlaps of 30–60 cm where multiple rolls are used.

  4. Secure in Place: Use landscape staples or pins to anchor the fabric.

  5. Add Base Materials: Backfill with gravel, sand, or other specified aggregates.

Proper installation will maximize the performance of the fabric and reduce maintenance needs.


Conclusion

Geotextile Separation Underlayment Permeable Filter Fabric is the smart choice for professionals who require reliable soil separation, excellent filtration, and structural reinforcement. Its adaptability across a range of projects, from highway construction to backyard landscaping, makes it an industry essential.

Geotextile Separation Underlayment Permeable Filter Fabric


Parameter


Item

Test Method

Unit

10

15

20

25

30

35

40

45

50

60

Index Properties

Ultimate Tensile

Strength. MD

ASTM D4595

KN/m

1

11

14

17

19

24

27

30

37

41

Ultimate Tensile

Strength, TD

ASTM D4595

KN/m

6

10

12

15

17

21

25

28

34

38

Tensile Elongation

ASTM D4595

%

45

45

50

50

50

60

60

60

60

60

Grab Tensile

Strength. MD

ASTM D4632

N

400

600

850

1000

1250

1450

1700

1900

2100

2500

Grab Tensile

Strength, TD

ASTM D4632

N

350

550

700

900

1100

1250

1450

1600

1800

2150

Grab Elongation

ASTM D4632

%

45

45

50

50

50

60

60

60

60

60

Trapezoid Tear

Strength. MD

ASTM D4533

N

160

300

350

430

490

540

630

710

770

920

Trapezoid Tear

Strength, TD

ASTM D4533

N

140

270

330

400

450

510

610

690

750

900

CBR Puncture

Strength

ASTM D6241

N

1000

1800

2300

2700

3200

3600

4400

4800

5800

6900

Apparent Opening

Size 090

ASTM D4751

mm

0.12

0.11

0.11

0.10

0.09

0.08

0.08

0.08

0.08

0.08

Water Flow Q100

ASTM D4491

L/m2/s

250

235

220

200

185

165

125

110

90

80

Weight

ASTM D5261

G/m2

100

150

200

250

300

350

400

450

500

600

Thickness

ASTM D5199

mm

1.2

1.8

2.3

2.9

3.2

3.6

3.9

4.2

4.4

4.8

Roll width

/

m

6

6

6

6

6

6

6

6

6

6

Roll Length

/

m

300

200

150

100

100

100

80

80

50

50


Geotextile Separation Underlayment Permeable Filter Fabric for Sale Features


Geotextile Separation Underlayment Permeable Filter Fabric


Here's a breakdown of the key characteristics and purposes of geotextile separation underlayment:


1. Separation: Geotextile separation underlayment is primarily used to separate different layers of soil or aggregate materials with varying particle sizes. It prevents the mixing and migration of fine particles into coarser layers, thereby maintaining the integrity and stability of the structure. It prevents the loss of granular materials into soft subgrades, thereby enhancing the overall performance of the construction.


2. Filtration: The permeable filter fabric allows water to pass through while retaining soil particles. It acts as a filtration layer by preventing clogging of underlying drainage systems or geotechnical features. By providing filtration, it ensures the free flow of water while preventing the migration of fine particles and potential soil erosion.


3. Reinforcement: Geotextile separation underlayment can also provide reinforcement to the soil or aggregate layers. It distributes the loads and reduces the potential for differential settlement, thereby enhancing the overall stability and strength of the construction. It can be used to reinforce embankments, retaining walls, roadways, and other geotechnical structures.


4. Permeability: The permeable nature of the geotextile allows water to pass through it, which is essential for effective drainage and groundwater management. It helps to maintain the hydraulic conductivity of the soil or aggregate layers and prevents the buildup of hydrostatic pressure.


Applications of Geotextile Separation Underlayment Permeable Filter Fabric


Geotextile Separation Underlayment Permeable Filter Fabric

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