Geosynthetics December 2024/January 2025 - 82

GEOSYNTHETIC CLAY LINERS
GCL Dimensional
Properties
GCL
Hydraulic
Properties
Base
Bentonite
Properties
GCL Structural Components
Upper
Geosynthetic
Lower
Geosynthetic
CETCO l www.cetco.com
BENTOMAT
600CL
BENTOMAT CL
BENTOMAT CLT
Needle-punched
laminated
Needle-punched
laminated
Needle-punched
laminated
BENTOMAT FLW Needle-punched
BENTOMAT DN
BENTOMAT ST
BENTOMAT
200R
BENTOMAT LP
RESISTEX 100,
200, and 300
series
RESISTEX U
Series
Needle-punched
Needle-punched
Needle-punched
Needle-punched
Needle-punched
Needle-punched
175 (1.0)
610 (3.5)
610 (3.5)
610 (3.5)
610 (3.5)
610 (3.5)
175 (1.0)
Per design
Per design
Per design
4.6/45.7
(15/150)
4.6/45.7
(15/150)
4.6/45.7
(15/150)
4.6/45.7
(15/150)
4.4/45.7
(14.5/150)
4.6/45.7
(15/150)
4.6/45.7
(15/150)
4.6/45.7
(15/150)
4.4/45.7
(14.5/150)
4.6/45.7
(15/150)
1250 (2750)
1270 (2800)
1360 (3000)
1220 (2700)
1220 (2700)
1220 (2700)
1200 (2650)
1360 (3000)
1360 (3000)
1220 (2700)
3660 (0.75)
3660 (0.75)
3660 (0.75)
3660 (0.75)
3660 (0.75)
3660 (0.75)
3660 (0.75)
3660 (0.75)
3660 (0.75)
3660 (0.75)
1 x 10-9
1 x 10-9
1 x 10-9
1 x 10-8
1 x 10-8
1 x 10-8
1 x 10-8
4 x 10-9
4 x 10-9✧✧
4 x 10-9✧✧
24
24
24
24
24
24
24
NP
NP
NP
18
18
18
18
18
18
18
NP
NP
NP
Geofilm/geotextile
composite
Smooth FML/
geotextile
composite
Textured FML/
geotextile
composite
Nonwoven
Nonwoven
Nonwoven
Nonwoven
Per design
Per design
Per design
NP
NP
NP
200 (6.0)
200 (6.0)
200 (6.0)
105 (3.2)
Per design
Per design
Per design
Woven
Woven
Woven
Scrim
reinforced
nonwoven
Nonwoven
Woven
Woven
Per design
Per design
Per design
200 (6.0)
200 (6.0)
105 (3.2)
105 (3.2)
Per design
Per design
Per design
LL, LC, SIC
LL, LC, SIC
LL, LC, SIC
LL, LC, SIC
LL, SIL, SIC
LL, SIL*
LL, SIL*
[1]: CETCO® RESISTEX®, geosynthetic clay liners are engineered to provide the highest level of chemical compatibility in extremely aggressive leachate environments such as coal combustion product storage facilities, mining operations, and
industrial waste storage facilities.
✧✧RESISTEX® geosynthetic clay liners were tested against various leachates including, but not limited to, samples from Electric Power Research Institute (EPRI) and other industrial leachates, and should be considered as guide only. CETCO®
offers project-specific compatibility testing to verify the suitability of CETCO® products. GCL mechanical properties can be tailored to meet project-specific geotechnical engineering requirements.
105 (3.2)
105 (3.2)
105 (3.2)
LL, LC, SIC,
CL, SIL
LL, LC, SIC,
CL, SIL
LL, LC, SIC,
CL, SIL
[1] Flux is defined as " Flow rate/unit area " which can
be converted to permeability using the equation:
Permeability = flux/hydraulic gradient
[3] CL = Canal liner
LL
[2] Report result at a maximum confining stress of 35 kPa
(5 psi) and 14 kPa (2 psi) head pressure
SIC = Surface impoundment cover
LC
= Landfill liner
= Landfill cover
SIL = Surface impoundment liner
NP = Not provided by manufacturer
NA = Not applicable, per manufacturer
Companies were requested to provide minimum
roll values (MARV). All claims are the responsibility
of the manufacturer.
« Geosynthetics recommends you contact the manufacturers before making any specifying/purchasing decisions »
82
Geosynthetics | Winter 2025
Product Name
Bonding Method
Needlepunched Peel Strength
ASTM D6496, N/m (lb/in)
Panel Size Roll Width/
Length m/m (ft/ft)
Average Roll Weight kg (lb)
Bentonite Mass/Unit Area
ASTM D5993
gm/m2 (lb/ft2)
Flux [1]
ASTM D 5887 [2]
m3/m2-s
Swell Index
ASTM D 5890 (min) ml/2g
Fluid Loss
ASTM D 5891 ml
Type or structure
Weight ASTM D5261
or Thickness ASTM
D5199 g/m2 or mm
(oz/yd2 or mil)
Type or structure
Weight ASTM D5261
or Thickness ASTM
D5199 g/m2 or mm
(oz/yd2 or mil)
Manufacturer's Suggested
Applications [3]
http://www.cetco.com
Geosynthetics December 2024/January 2025

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