Geosynthetic Clay Liner GCL
Specification
1. Geosynthetic Clay Liner GCL
2. Drainage, protection and waterproof
3. Factory price
Product Description
Made from two layers geotextile with matural sodium in the centre.
Bentonite waterproof blanket, it is made from high dilatability of sodium base bentonite filling between the special composite geotextile and non-woven fabric, with acupuncture law into bentonite seepage control pad can form many small fiber space, is bentonite particles can not be like a direction, when under the influence of water within the mat forming uniform density of colloidal waterproof layer, effectively prevent leakage of water.Mainly used for used for artificial lake water, landfill, underground garage.
Specification
1. Unit weight : ≥4000g/m2
2. 4m - 6m in roll width
3. two different Geosynthetic Clay Liners,
l a fabric encased GCL(needle punched GCL)
l a geomembrane supported GCL (needle punched GCL coated with film)
Data Sheet
Item | Value |
GCL-NP | GCL-OF | GCL-AH |
GCL Mass/unit area g/m2 | ≥4000 | ≥4000 | ≥4000 |
Swel Index ml/2g | ≥24 | ≥24 | ≥24 |
ethylene blue absorption g/100g | ≥30 | ≥30 | ≥30 |
Tensile strength KN/m | ≥600 | ≥700 | ≥600 |
Elongation at max load % | ≥10 | ≥10 | ≥8 |
Peel strength N/100mm | Nonwoven geotextile and woven geotextile | ≥40 | ≥40 | --- |
PE geomembrane and Non woven geotextile | --- | ≥30 | --- |
Pesistance hydraulic pressure m/s | ≤5.0 x 10 -11 | ≤5.0 x 10 -12 | ≤1.0 x 10 -12 |
Resistance hydraulic pressure | 0.4Mpa 1h no leakage | 0.6Mpa 1h no leakage | 0.6Mpa 1h no leakage |
Fluid loss ml | ≤18 | ≤18 | ≤18 |
Durability of bentonite ml/2g | ≥20 | ≥20 | ≥20 |
Application:
Land fill, Contaminated sites, Mining projects, Garden and landscaping works
FAQ
How to find the best geosynthetic clay liner?
1. The upper and carrier geotextile must be polypropylene to guarantee GCL better tensile strength.
Tensile strength must be 6kN Min.
2. The bentonite core must be sodium bentonite not calcium bentonite to make the permeability coefficient less.
Permeability coefficient 5x10-11m/s Max
Swell index 24ml/2g Min.
Filter Loss 18ml Max.
3. Geotextile and bentonite must be bonded by needle punched process.
Peel strength 600N Min.
4. dry sodium bentonite weight must be bigger than 3.6kg/sqm, the bentonite moisture content is about 10%.
Packaging & Shipping
1. 5m/5.8mX40m/roll
2.16 rolls/ 20'GP