Geosynthetic Clay Liners
Product Description
We, Shanghai Yingfan, is a geosynthetic clay liner (gcl) manufacturer in China. Our GCL price is competitive in abroad and domestic market with good quality. International clients can buy our GCL products directly from our Alibaba B2B platform or directly contact us to buy.
Geosynthetic clay liner Introduction
It is betonite geo-synthetic waterproofing barrier. It is self-attaching and self -sealing to concrete or other construction structures. It is made of a non-woven geotextile, a natural sodic bentonite layer, with or without a pe geomembrane layer, and a polypropylene sheet.
These layers are connected with a dense felter that makes the bentonite a self-confinement with controlled expansion. With this system it is possible to avoid slippage and the accumulation of bentonite as a consequence of cuts, tears, vertical applications and movements.
Its performance can meet or exceed GRI-GCL3 and our national standard JG/T193-2006.
bentonite GCL application for tailing waste dam
bentonite GCL for artificial lake
Geosynthetic Clay Liner for landfill
Functions
The engineering function of a GCL is containment as a hydraulic barrier to water, leachate or other liquids and sometimes gases. As such, they are used as replacements for either compacted clay liners or geomembranes, or they are used in a composite manner to augment the more traditional liner materials. The ultimate in liner security is probably a three component composite geomembrane/geosynthetic clay liner/compacted clay liner which has seen use as a landfill liner on many occasions.
Specification
Reinforced GCL(GT-related ) Specification
| Test Item | Test Methods | Criteria |
| Bentonite Swell Index | ASTM D 5890 | ≥24ml/2g |
| Bentonite Fluid Loss | ASTM D 5891 | ≤18ml |
| Bentonite Mass/unit area | ASTM D 5993 | ≥3.7kg/㎡ |
| Geotextiles-cap Fabric Nonwoven, Mass/unit area | ASTM D5261 | ≥200g/㎡ |
| Geotextiles-carrier Fabric woven, Mass/unit area, Mass/unit area | ASTM D5261 | ≥100g/㎡ |
| GCL tensile strength | ASTM D 6768 | ≥4.0KN/m |
| Mass of GCL | ASTM D5993 | ≥4000g/㎡ |
| Peel strength | ASTM D 6496 | ≥360N/m |
| Index flux | ASTM D 5887 | ≤1×10-8m3/sec-㎡ |
| Permeability | ASTM D 5887 | ≤5×10-11cm/sec |
| Geotextile and reinforcing yarns (% strength retained) | ASTM D 5721 ASTM D6768 |
65 |
Reinforced GCL(GM-GF Related ) Specification
| Test Item | Test Methods | Criteria |
| Bentonite Swell index | ASTM D 5890 | ≥24ml/2g |
| Bentonite Fluid loss | ASTM D 5891 | ≤18ml |
| Bentonite Mass /unit area | ASTM D 5993 | ≥3.7kg/㎡ |
| Geotextiles-cap Fabric nonwoven, mass/unit area | ASTM D5261 | ≥200g/㎡ |
| Geotextiles-carrier Fabric woven, mass/unit area, mass/unit area | ASTM D5261 | ≥100g/㎡ |
| Mass of GCL | ASTM D5993 | ≥4100g/㎡ |
| GCL tensile strength | ASTM D 6768 | ≥4.0KN/m |
| Peel strength | ASTM D 6496 | ≥360N/m |
| Geofilm thickness | ASTM D 5199/D5994 | 0.1 mm |
| Geofilm density | ASTM D 1505/792 | ≥0.92g/cc |
| Geofilm tensile strength, MD | ASTM D 882 | ≥2.5KN/m |
GCL Specifications:
1. Unit weight: 4000g/m2---6500g/㎡
2. The width range is 3meter-6meters; Maximum width is 6meters; Other width can be custom.
3. The length can be 20, 30, 40 meters or as request. Maximum length is depending on the rolling limit.
bentonite clay liner
Geosynthetic Clay Liners
membrane supported GCL
Production Process
1. Roadway separation and stabilization
2. Landfill leachate collection
3. Steepened slopes
4. Retaining walls
5. Embankments over soft soil
6. Lagoon closures
7. Silt fence
The below is two landfill application examples for our geosynthetic clay liner products:
FAQ
Q1: Can you offer us a sample for this product?
A1: Yes, we can offer a free sample. Meanwhile, we can offer free courier freight for our new clients at the first time.
Q2: What is your MOQ?
A2: For available stock of geosynthetic clay liner, one roll is our MOQ. But for short stock of our ordinary products, our MOQ is 1000m2 for ordinary specification.
Q3: How to transport the goods to our place?
A3: Usually by sea. Our product belongs heavy cargo so usually it is loaded in 20’container instead of in 40HQ container.
Bentonite plays a critical role for geosynthetic clay liner product so its quality is quite vital. We, as a professional gcl supplier, select top quality of natural sodium bentonite as our raw material, and apply advanced and well-controlled needle punching technology, to produce this product. The important, and only, reason of doing this is to provide excellent usage effect for our clients, also for our better living earth.