TR Made in Çankırı, Türkiye
AlphaGCL Liner TR
Needle-punched geosynthetic clay liner
A factory-made hydraulic barrier: high-swelling Anatolian sodium bentonite, needle-punched between two geotextiles. We make it on our own line in Çankırı for landfills, reservoirs, mining ponds and tunnels.

- Bentonite content
- ≥ 4,000 g/m²
- Hydraulic conductivity (k)
- ≤ 5 × 10⁻¹¹ m/s
- Standard roll width
- 2.40 m
- Tensile strength (MD / CD)
- ≥ 4.5 / 3.5 kN/m
- Puncture resistance
- ≥ 1.0 kN
Three layers, punched into one.
Two geotextiles hold a continuous layer of sodium bentonite. Fibres needled through all three keep the clay where it was laid.

- 1
Upper geotextile
Needle-punched polypropylene non-woven
Grips the cover soil or a geomembrane above it, so the liner holds on slopes.
- 2
Sodium bentonite core
≥ 4,000 g/m², montmorillonite above 75%
From our own Çankırı reserves. Hydrated, it swells to 15–20 times its dry volume and forms a low-permeability seal that closes around small punctures and settlement cracks under load.
- 3
Lower geotextile
Woven or non-woven carrier
Takes the tensile load and protects the core from an uneven subgrade, stones and roots.
- 4
Needle-punched fibres
Through all three layers
Lock the bentonite in place, so it doesn't migrate sideways and the liner keeps its internal shear strength under load.
Made on our own line in Çankırı.
The same operation that mines and processes our Alpha TR bentonite makes the liner, so the clay goes from our pits into the roll without a middleman.

- Metered bentonite
- Dosed by machine across the full 2.40 m width, to at least 4,000 g/m².
- Needle-punching
- Industrial looms punch the upper and lower geotextiles together through the clay in one continuous pass.
- In-line checks
- Thickness, moisture (≤ 12%) and roll weight are checked on the line, under ISO 14001 and GMP procedures.
- Wrapped for site
- Each roll is shrink-wrapped in UV-stabilised plastic, with lifting loops for a crane or spreader bar.
Specification
Typical values for the standard grade. Other roll lengths and geotextile combinations are made to order.
The full technical data sheet and test certificates are sent on request. Roll weight depends on length and geotextile grade and is stated on each quotation.
| Product type | Needle-punched geosynthetic clay liner (GCL) |
|---|---|
| Trade name | AlphaGCL Liner TR |
| Standard width | 2.40 m |
| Roll length | 30–50 m; other lengths to order |
| Total thickness | 5–7 mm (nominal) |
| Bentonite content | ≥ 4,000 g/m² sodium bentonite |
| Montmorillonite | > 75% |
| Tensile strength (MD / CD) | ≥ 4.5 / 3.5 kN/m |
| Puncture resistance | ≥ 1.0 kN |
| Hydraulic conductivity (k) | ≤ 5 × 10⁻¹¹ m/s |
| Moisture at dispatch | ≤ 12% |
| Self-sealing | Yes: the bentonite swells to close small punctures under confining stress |
Where it goes.
Anywhere a project needs a thin, flexible clay barrier that goes down faster than compacted clay.
Landfills and capping
Base liners and final caps that keep leachate out of the groundwater.
Reservoirs and canals
Drinking-water reservoirs, storm ponds and irrigation canals where seepage costs water.
Mining and tailings
Heap leach pads, process-water ponds and tailings impoundments.
Tunnels and basements
Waterproofing for cut-and-cover tunnels, stations, diaphragm walls and underground car parks.
Chemical and fuel storage
Secondary containment under tank farms and bunds.
Farm ponds and lagoons
Irrigation ponds and livestock effluent lagoons.
Installing it in four steps.
A summary. Follow the project engineer's specification; detailed installation notes come with the order.
- Step 1
Prepare the subgrade
Smooth and compacted, free of stones, sharp debris and standing water.
- Step 2
Unroll
Non-woven side up, from an excavator with a spreader bar. Don't drag the liner over rough ground.
- Step 3
Overlap and seal
Overlap neighbouring rolls by 10–30 cm and run a continuous bead of AlphaSeal TR bentonite powder along the seam, about 0.4 kg per metre.
- Step 4
Cover it
Place at least 30 cm of compacted soil, gravel or a geomembrane on top. Keep heavy machinery off uncovered liner.
Rolls per container.
Based on the standard 2.40 × 40 m roll. Shipped from any of our four Turkish ports.
- Per standard roll
- 96 m²
- 2.40 m × 40 m
- 20 ft GP container
- 8–10 rolls
- about 768–960 m²
- 40 ft HC container
- 18–22 rolls
- about 1,728–2,112 m²
Typical loads. The exact count depends on roll length and weight and is confirmed on the quotation.
- Mersin Port · Mediterranean
- Samsun Port · Black Sea
- İzmir Port · Aegean
- Gemlik / İstanbul · Sea of Marmara
Price AlphaGCL Liner TR for your project.
Tell us the application, the area in square metres and the destination port. We reply with a price, lead time and the technical data sheet.

Mr. Mustafa Ulutas
Regional Representative — Mining & Manufacturing Operations
Directs AlphaKlay Global's joint mining concessions in Çankırı (Elmacı and Tüney fields), the automated processing lines, OEM private-label production and exports through Turkish ports.
- +90 539 452 48 88
- Hub
- Çankırı, Türkiye
- Ports
- Mersin, Samsun, İzmir, Gemlik / İstanbul

