Model NO.: 4000g Sodium Bentonite Gcl for Subgrade Certification: ISO Usage: Insulation, Waterproof, Water Filter Kind: Non-woven Certifiate: ISO9001 Trademark: RUNTONG Origin: Dezhou, China Color: White or Black Feature: Corrosion Resistant, Oxidation Resistance, Wear-resistant Material: HDPE and Polyester or Polypropylene Roll Width: 1-8m Roll Length: 30- 100 Mtrs, as Request Specification: 3500g/m2 to 6000g/m2 HS Code: 39219090 4000g Sodium Bentonite GCL for Subgrade
Description of 4000g Sodium Bentonite GCL:
Made from two layers
Geotextile with natural sodium in the centre...
Specification of 4000g Sodium Bentonite GCL
GCL-NP, GCL-OF, GCL-AH
Unit weight: ≥ 4000g/m.
4-6m in roll width.
Property of 4000g Sodium Bentonite GCL
Swell when meet water
Long time waterproofing and friendly to envirment.
Separation, reinforcement, protection, filtration and easy for construction.
Application of 4000g Sodium Bentonite GCL
Municipal project, subway, underground and roof waterproofing
Landfill, waste water treatment, industrial waste.
Waterproofing and reinforcement in water conservancy, viver, lake and dam
Artificial lake, golf course and fish pond
Petrifaction and mineral waterproofing


NO | Item | GCL-NP technological standards | GCL-OF technological standards | GCL-AH technological standards |
01 | Mass per unit area | ≥4000 | ≥4000 | ≥4000 |
02 | Swelling index | ≥24 | ≥24 | ≥24 |
03 | Blue suction quantity | ≥30 | ≥30 | ≥30 |
04 | Tensile strength | ≥600 | ≥700 | ≥600 |
05 | The maximum load elongation | ≥10 | ≥10 | ≥8 |
06 | Peel strength | ≥40 | ≥40 | -- |
07 | Pell strength | -- | ≥30 | -- |
08 | Coefficient of permeability | ≤5.0*10 -11 | ≤5.0*10 -12 | ≤1.0*10 -12 |
09 | Hydrostatic pressure | 0.4MPa.1h | 0.6MPa.1h, | 0.6MPa.1h |
10 | Filtration | ≤18 | ≤18 | ≤18 |
11 | Durability | ≥20 | ≥20 | ≥20 |
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