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Bentonite geosynthetic clay liners (GCL) are a new type of environmentally friendly composite waterproofing material, mainly used for anti-seepage projects. According to the production process, bentonite geosynthetic clay liners can be divided into the following types:
Needle-punched bentonite geosynthetic clay liners: Produced by needling processes that fix bentonite particles between a geotextile and a plastic woven fabric, creating a mat-like waterproofing material. This method ensures a strong bond between the bentonite and the geotextile, enhancing waterproofing performance.
Needle-punched and membrane-coated bentonite geosynthetic clay liners: A high-density polyethylene geomembrane is laminated onto the outer surface of the non-woven geotextile of the needle-punched bentonite geosynthetic clay liner. This design not only improves waterproofing performance but also enhances durability.
Adhesive-bound bentonite geosynthetic clay liners: Bentonite particles are bonded to a high-density polyethylene board using an adhesive, and then compressed to produce the liner. This method ensures a tight bond between the bentonite and the substrate, improving overall performance.
The main application areas of bentonite geosynthetic clay liners include landfills, underground reservoirs, and underground infrastructure construction, effectively solving problems related to sealing, isolation, and anti-seepage. They are known for their good resistance to damage and durability.
| Inspection Item | Testing Procedure | Technical Index |
| Bentonite mass for unit area | ASTMD5993 | ≥5.5kg/m2 |
| Expansion coefficient | ASTMD5890 | ≥ 25mL/2g |
| Low temperature ductility | ASTMD5898 | No impact at -35°C |
| Thickness | ASTMD5892 | ≥6.4mm |
| Tensile strength | ASTMD4632 | ≥540N |
| Peel strength of concrete face | ASTMD4632 | ≥3.0 KN/ m2 |
| Peel strength | ASTMD4632 | ≥68N |
| Indicated flow | ASTMD5887 | ≤1 × 10-8m3/m2/sec |
| Hydrostatic pressure resistance | ASTMD5888 | ≥70 |
| Permeability | ASTMD5887 | ≤5 × 10-12cm/sec |
| Extension rate | ASTMD5896 | ≥20 |
| Puncture strength | ASTMD5894 | ≥635N |
| · Landfills | · Mud Pits |
| · Lagoons | · Canals |
| · Bund Lining | · Tank Lining |
| · Fish Farm Lining | · Roof Lining |
| · Waste Water Pits | · Ponds and Reservoirs |
| · Dams | · Floating Covers |
| · Vertical Cutoff Walls | · Hydraulic Structure |
| · Basement Lining | · Drip Irrigation Ponds |
1. Advanced and Sufficient equipment More than 100 sets of most advanced equipment in our workshop ensure timely delivery time for large orders. Additional, it can ensure standardized production, which accord with international standard.
2. Experienced and skilled worker team Equipped with professional production skills and several years experience, our worker team can improve production efficiency and reduce production losses for cost reduction.
3. Multiple models for completed products We have almost all of standard bearing pad models to produce standard bearing pads, including pot bearing, laminated bearing pad, spherical bridge bearing, high damping rubber bearing and lead rubber bearings.
4. Perfect Package & Timely delivery All the products are inspected before loading, then they will be perfectly packed. Then our skilled loading team will operate the equipment for easy and fast loading.
5. Professional sales team Full knowledge of bearing pad products, good spoken and written English and excellent communication skills can offer you the best solutions to your questions. You can ask for recommendation, customized service and any other information you want from them.
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