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Top Geosynthetic Clay Liners Suppliers in China
Geosynthetic Clay Liners (GCLs) is one of Chinas top makers and suppliers of geosynthetic clay liners. Its products used in construction and environmental work are known for being dependable and of outstanding quality. The liners impermeability, strength, and careful engineering consistently outstrip industry standards. GCL also promises smooth performance and the highest level of customer satisfaction. Count on GCL for new challenges and respected solutions tailored to your exact needs.
Understanding Geosynthetic Clay Liners: What Are Geosynthetic Clay Liners？
Prefabricated hydraulic barriers are clay liners consisting of a thin layer of sodium bentonite clay interposed between two layers of geotextiles. Any of the two layers can be woven or nonwoven-type textile material and can be further reinforced by geomembrane or adhesive. Since swelling of bentonite with water enhances sealing ability, the linings are intended as low-perm barriers for containment applications such as landfill liners, pond sealing, and groundwater protection.
Unveiling the Key Strengths of Geosynthetic Clay Liners
Geosynthetic clay liners (GCLs) offer excellent impermeability with swelling sodium bentonite clay, ensuring effective sealing for landfills and ponds. Their durable design, combining bentonite with geotextiles and optional geomembranes, meets high industry standards.
Superior Impermeability
Geosynthetic clay liners (GCLs) provide exceptional hydraulic barrier properties due to the swelling action of sodium bentonite clay when hydrated, effectively sealing against water and leachate migration in applications such as landfills and ponds.
Enhanced Installation Efficiency
GCLs are prefabricated and delivered in large rolls, facilitating rapid and precise installation on site, which reduces labor costs and enhances project timelines in construction and environmental applications.
Robust Durability
The combination of bentonite clay sandwiched between geotextile layers, often reinforced with geomembranes, ensures GCLs withstand mechanical stress, environmental exposure, and long-term use, exceeding industry standards for containment systems.
Environmental Compatibility
GCLs offer eco-friendly containment solutions by minimizing soil and groundwater contamination, supporting sustainabl
what is geosynthetic clay liner
- A geosynthetic clay liner (GCL) is a prefabricated hydraulic barrier composed of a layer of sodium bentonite clay encapsulated between two geotextile layers, which may be woven or nonwoven, and occasionally reinforced with a geomembrane or adhesive.
- GCLs are designed to provide low-permeability containment, serving as an effective barrier against water and leachate migration in applications such as landfill liners, pond sealing, and groundwater protection.
- The sodium bentonite clay swells upon hydration, enhancing the sealing capability, while the geotextile layers provide structural support, ensuring durability and stability in diverse environmental conditions.
How Do Geosynthetic Clay Liner Installation?
- Site Preparation: The installation of geosynthetic clay liners (GCLs) begins with preparing a smooth, compacted subgrade free of sharp objects, ensuring proper drainage and stability to support the liner and prevent damage during placement.
- Placement and Unrolling: GCLs are delivered in large rolls and unrolled systematically across the prepared surface, with careful alignment and overlapping of edges (typically 150–300 mm) to facilitate proper seaming, ensuring continuous coverage.
- Seaming and Anchoring: Seams are secured using methods such as needle-punching, adhesive bonding, or thermal treatment, depending on the GCL type, followed by anchoring the edges with trenches or mechanical fasteners to withstand environmental stresses and maintain integrity.
Explore Our Geosynthetic Clay Liners For Sale
A standard needle-punched geosynthetic clay liner (GCL) features sodium bentonite clay between a woven and nonwoven geotextile, bonded by needle-punching, offering a balanced impermeability and strength for general containment like landfill liners.
This lighter variant uses less sodium bentonite clay between a woven and nonwoven geotextile, bonded by needle-punching, providing a cost-effective sealing solution for less demanding applications like decorative ponds.
With a higher amount of sodium bentonite clay between a woven and nonwoven geotextile, bonded by needle-punching, this heavier GCL offers enhanced impermeability for challenging uses like mining heap leach pads.
This GCL includes a polymeric film (e.g., polyethylene) with bentonite and geotextiles, bonded by needle-punching, adding waterproofing and chemical resistance for applications like chemical storage facilities.
An unreinforced GCL consists of bentonite clay between two geotextiles, held by adhesives without needle-punching, suitable for low-stress uses like capping covers but less durable under heavy loads.
geosynthetic clay liner specification Charts
| Parameter Name | Example Value | Units | Notes / Description |
|---|---|---|---|
| Tensile Strength (MD / Warp) | 8 | kN/m | Ultimate Strength in Machine Direction |
| 536 | lbs/ft | ||
| Tensile Strength (CD / Weft) | 7 | kN/m | Ultimate Strength in Cross Direction |
| 469 | lbs/ft | ||
| Elongation (MD / Warp) | 10 | % | % Strain at Break in Machine Direction |
| Elongation (CD / Weft) | 12 | % | % Strain at Break in Cross Direction |
| CBR Puncture Resistance | 1500 | N | Resistance to localized puncture load (e.g., from aggregate) |
| 337 | lbs | ||
| Apparent Opening Size (AOS) | 0.2 | mm | Max particle size retained (0%) - e.g., Sieve No. 50 |
| Permittivity | 0.05 | s⁻¹ | Water flow rate perpendicular to plane |
| Mass Per Unit Area | 4000 | g/m² | Weight of the fabric |
| 132 | oz/yd² | ||
| Material Type | Bentonite with Geotextile | N/A | Materials used for the liner |
| UV Resistance (500 hrs) | 60 | % Retained | Minimum % strength retained after standard UV exposure |
| Roll Width | 4 | m | Standard roll width |
| 13.1 | ft | ||
| Roll Length | 50 | m | Standard roll length |
| 164 | ft |
Industries We Serve
Top Application of geosynthetic clay liner uses
Landfill Liners
Geosynthetic clay liners (GCLs) are widely used as impermeable barriers to contain leachate and prevent groundwater contamination in landfill sites.
Pond and Lake Linings
GCLs provide effective sealing for ponds and lakes, ensuring water retention and preventing seepage into surrounding soils.
Mining Heap Leach Pads
They serve as containment layers in mining operations, protecting the environment by minimizing the escape of chemical solutions used in heap leaching.
Canal and Reservoir Linings
GCLs are applied to line canals and reservoirs, offering durable waterproofing to support water storage and irrigation systems.
What Our Client Says
Understand from our clients what they say about doing business with us and the unique value addition we provide.
The Geosynthetic Clay Liners were a game-changer for our mining heap leach pad. Easy to install and incredibly effective at preventing leaks—excellent quality!
Andis Reynolds
Mining Operations Supervisor
We used Geosynthetic Clay Liners for our reservoir project, and they delivered outstanding waterproofing and durability. Highly satisfied with the results!
Sarah Davis
Water Resource Manager
Discover the Power of Geosynthetic Clay Liners
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Unlock the Best Geosynthetic Clay Liner Price
Enhance your containment solutions with high-performance geosynthetic clay liners (GCLs), designed for landfills, mining, ponds, and water management. Leveraging advanced technology, these eco-friendly liners offer superior sealing, durability, and ease of installation, meeting stringent environmental regulations. Contact us today to secure a competitive geosynthetic clay liner price tailored to your needs, and discover how our cost-effective solutions can elevate your project’s efficiency and sustainability. Act now to request your personalized quote!
Frequently Ask Questions
Q: What is a geosynthetic clay liner made of?
A: A geosynthetic clay liner (GCL) is made of a layer of sodium bentonite clay encapsulated between two geotextile layers, which may be woven or nonwoven, and sometimes reinforced with a geomembrane or adhesive for added strength.
Q: Where are geosynthetic clay liners commonly applied?
A: Geosynthetic clay liners are commonly applied in landfills, pond linings, mining heap leach pads, canal waterproofing, and reservoir containment to prevent water and leachate migration.
Q: How does a geosynthetic clay liner achieve impermeability?
A: A geosynthetic clay liner achieves impermeability through the swelling action of sodium bentonite clay when hydrated, which fills voids and creates a tight seal, enhanced by the supporting geotextile layers.
Q: What is the typical lifespan of a geosynthetic clay liner?
A: The typical lifespan of a geosynthetic clay liner ranges from 30 to 50 years, depending on environmental conditions, installation quality, and maintenance, with some applications lasting longer under optimal conditions.
Q: Can geosynthetic clay liners be used in cold climates?
A: Yes, geosynthetic clay liners can be used in cold climates, as they remain flexible and effective when properly installed, though precautions such as insulation or protective cover layers may be required to prevent freezing damage.
Q: What are the installation requirements for geosynthetic clay liners?
A: Installation requires a smooth, compacted subgrade free of sharp objects, careful unrolling of GCL rolls with overlapped seams (150–300 mm), and secure seaming and anchoring to ensure a continuous barrier.
Q: How do geosynthetic clay liners compare to compacted clay liners?
A: Geosynthetic clay liners offer thinner profiles (5–10 mm) and easier installation compared to compacted clay liners (300–600 mm), while providing similar impermeability with the added benefit of geotextile reinforcement.
Q: Are geosynthetic clay liners environmentally friendly?
A: Yes, geosynthetic clay liners are environmentally friendly, as they use natural bentonite clay and synthetic materials to minimize soil and groundwater contamination, supporting sustainable waste and water management practices.