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LLDPE Composite Geomembrane (Two-layer Fabric, One-layer Membrane) | Double-sided Protection and Integrated Drainage Function

LLDPE (two-layer geotextile and one-layer geomembrane) composite geomembrane is suitable for engineering projects with the risk of uneven settlement. It has excellent flexibility, double-sided protection and internal drainage function, and is suitable for landfill capping layers.

Classification :

PRODUCT DETAILS

1. Product Overview

The Flexible, Multi-Functional Containment System.

Our LLDPE Composite Geomembrane (Two layers of fabric and one membrane) is designed for critical projects exposed to ground movement and hydrostatic pressure. It features a highly flexible LLDPE membrane sandwiched between two layers of protective nonwoven geotextile. This configuration ensures dual-sided cushioning against rough layers (top and bottom) and utilizes the geotextile layers for integrated drainage to quickly relieve pressure, making it indispensable for landfill closure systems and geologically volatile areas.

2. Key Features

  • Anti-Settlement Flexibility: The LLDPE base offers extreme elongation (>800%), accommodating ground shifts and differential settlement that would crack rigid HDPE.

  • Dual-Sided Cushioning: Geotextile on both sides provides comprehensive protection, essential when covering the membrane with heavy soil or aggregate.

  • Pressure Relief & Drainage: The geotextile layers can function as a lateral drainage path, relieving hydrostatic uplift pressure beneath the liner.

  • UV Resistance: The outer geotextile layers provide temporary UV protection to the LLDPE membrane during prolonged installation.

3. Applications

  • Landfill Closure Systems (Capping): Protecting the liner from waste gas venting layers and covering soil.

  • Vaulted Ceilings & Tunnels: Providing waterproofing and drainage against structural walls.

  • Golf Course Lakes: Lining complex shapes that require high flexibility and cushioning.

4. Technical Specifications

Specification Item Test Standard Unit Value (Typical LLDPE Comp. 2L)
Membrane Material - - LLDPE (Flexible)
Membrane Thickness ASTM D5994 mm 0.75mm - 1.5mm
Geotextile Layers - - Two Layers (Top and Bottom)
Geotextile Weight g/m² 150g/m² + 150g/m² Minimum  
Seam Peel Strength ASTM D6392 N/mm ≥ 1.0
Puncture Resistance (Total) ASTM D4833 N Varies, much higher than single layer

 

Need LDPE geomembrane and nonwoven geotextile? Please check out our LDPE liners and nonwoven geotextiles.

 

Main Products

PROJECT CASES

Mining

geosynthetics are widely used in mining projects and have a long service life. Product specifications are customized according to customer needs, and customers are very welcome to visit our factory.

Landfill

Factory provides customers with high-standard geosynthetics to meet their needs for building landfills.

Coastal Engineering

In coastal engineering, geosynthetics such as geobags, cement blankets, and geogrids play an important role in coastal engineering from coastal protection, structural reinforcement to slope stability, and effectively respond to the challenges brought by the complex geology and environment of coastal areas.

Ditch Construction

In the field of canal and canal construction and maintenance, geosynthetics have made important contributions to the efficient operation of water conservancy projects, the rational use of water resources, and the improvement of project durability through their unique functions.

Slope Protection

The application of geosynthetics in mining runs through every link from mine construction to tailings treatment, waste rock dump management and slope protection, playing an indispensable role in improving mining production safety, reducing environmental pollution and ensuring sustainable development of resources.

Road Construction

The geosynthetics such as geomembranes, geotextiles, geogrids, geocells, etc. provided by play an irreplaceable role from roadbed treatment to pavement protection, from drainage systems to environmental protection isolation.

Agriculture

In agricultural irrigation and biogas digester scenarios, geosynthetics such as geomembranes and geotextiles play a key role due to their respective characteristics. The products provided by Factory meet the standards and can be customized according to requirements.

Aquaculture

In the aquaculture industry, geosynthetics such as geomembranes and geotextiles can be used to create healthy aquaculture ponds, ensure stable water quality and reduce water resource consumption. All geosynthetics provided by can be customized according to customer needs.

APPLICATION AREAS

Geotechnical material series are widely used in various fields such as highways, railways, tunnels, water conservancy of reservoirs and canals, artificial lakes, environmental protection, sewage treatment, landfills, anti-seepage of tailings reservoir areas, and livestock breeding.

Water conservancy projects

Water conservancy projects

Geosynthetics play a vital role in water conservancy projects such as dams and reservoirs, canals and channels, and riverbank protection.

Breeding industry

Breeding industry

In the aquaculture industry, geosynthetics such as geomembranes and geotextiles can be used to create healthy aquaculture ponds, ensure stable water quality and reduce water resource consumption. All geosynthetics provided by can be customized according to customer needs.

Road construction

Road construction

The geosynthetics such as geomembranes, geotextiles, geogrids, geocells, etc. provided by play an irreplaceable role from roadbed treatment to pavement protection, from drainage systems to environmental protection isolation.

Agricultural

Agricultural

In agricultural irrigation and biogas digester scenarios, geosynthetics such as geomembranes and geotextiles play a key role due to their respective characteristics. The products provided by Factory meet the standards and can be customized according to requirements.

Coastal Engineering

Coastal Engineering

In coastal engineering, geosynthetics such as geobags, cement blankets, and geogrids play an important role in coastal engineering from coastal protection, structural reinforcement to slope stability, and effectively respond to the challenges brought by the complex geology and environment of coastal areas.

Environmental Protection

Environmental Protection

Factory provides customers with high-standard geosynthetics to meet their needs for building landfills.

LISTEN & DELIVER TRUSTED SOIUTIONS.

FAQ

Are you a factory or trading company?


We are a professional manufacturer that specialized in geomembrane, geotextile, composite geomembrane etc with ISO9001 certificate more than 25 years.

Could you send the sample before order confirmation?


Yes, we'd love to send a free sample to you for an evaluation if you need.

How long is your delivery time?


Generally it is 5-10 days upon getting your deposit payment.

Can you produce the product according to customers' requirements?


Sure, we are professional manufacturer, OEM and ODM are both welcome.

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