GCL geosynthetic clay liners GCL
GCL(geosynthetic clay liners)commacted with clay liner, it has the advantages of small size,light weight ,good flexibility and seal, easy for construction suitable for uneven settlement
geosynthetic clay liner
Specification.Unit weight ≥ 4000g / m², width of 4-6 m Characteristics : Comacted with clay liner,it has the advantages of small size, light weight, good flexibility and seal, easy for construction and suitable for uneven settlement. Usage Mainly used in environmental engineering of landfill emissions, underground reservoirs, underground infrastructure construction projects, sealing solution, segregation, anti-leakage, good effect, anti-destructive.
GCL category and physical indicators:(According to JG/T 193-2006 standard)
Property | Specifications | |||
GCL-NP | GCL-OF | GCL-AH | ||
Mass Per Unit Area(g/m2) | ≥4,000and not less than the determined mass | ≥4,000 not less than the determined mass | ≥4,000 not less than the determined mass | |
Geosynthetic Clay Expansion index(mL/2g) | ≥24 | ≥24 | ≥24 | |
Methylene Blue Absorption (g/100g) | ≥30 | ≥30 | ≥30 | |
Tensile Strength( N/100mm) | ≥600 | ≥700 | ≥600 | |
With load maximum elongation() | ≥10 | ≥10 | ≥8 | |
Peel strength (N/100mm) | Non-woven and Woven Geotextile | ≥40 | ≥40 | — |
PE geomembrane and Non-woven Geotextile | — | ≥30 | — | |
Permeability(m/s) | ≤5.0×10-11 | ≤5.0×10-12 | ≤5.0×10-12 | |
hydrostatic pressure | 0.4Mpa,1h,No infiltration | 0.6Mpa,1h,No infiltration | 0.6Mpa,1h,No infiltration | |
Filtrate loss Ability (ml) | ≤18 | ≤18 | ≤18 | |
Geosynthetic Clay Durability(ml/2g) | ≥20 | ≥20 | ≥20 | |
Note:1) Needle punched Na-bentonite geosynthetic clay liner, that is two liners of geotextile wrap the Na-bentonite and needle punched together, be signed by GCL-NP. 2) Needle punched and membrane sticked Na-bentonite geosynthetic clay liner, that is cover and stick a high density polyester membrane on the needle punched Na-bentonite geosynthetic clay liner, be signed by GCL-OF.3) Stickiness Na-bentonite geosynthetic clay liner, that is use glue stick the bentonite to high density polyester membrane and press into a kind of Na-bentonite geosynthetic clay liner, be signed by GCL-AH.4)The products use the polyester flat silk woven geotextile should be according to GB/T17690 requirement,and it is the anti-UV 120g/m2 polyester flat silk woven geotextile. 5)This products suitable non-woven geotextile is 220g/m2.
geosynthetic clay liner(GCL)
