Bentonite / Soil Tests
The following table represents the current test methods for the bentonite components of geosynthetic clay liners, such as the needlepunched Bentofix®.
| Topic | Method | Title of Standard |
| Methylene Blue Titration | ||
| Determination of Water (Moisture) Content of Soil by the Microwave Oven Method | ||
| Hydraulic Conductivity of Saturated Porous Materials Using Flexible Wall Permeameter | ||
| Swell Index of Clay Mineral Component of Geosynthetic Clay Liners | ||
| Fluid Loss of Clay Mineral Component of Geosynthetic Clay Liners | ||
| Measuring Mass Per Unit Area of Geosynthetic Clay Liners | ||
| Screening the Clay Portion of a Geosynthetic Clay Liner for Chemical Compatibility to Liquids |
GCL Specific Tests
The following table represents the current test methods for geosynthetic clay liners, such as the needlepunched Bentofix®.
| Topic | Method | Title of Standard |
| Measurement of Index Flux Through Saturated GCL Specimens Using Flexible Wall Permeameter | ||
| Measuring Mass per Unit Area of Geosynthetic Clay Liners | ||
| Determining the Internal and Interface Shear Resistance of GCLs by the Direct Shear Method | ||
| Determining Average Bonding Peel Strength Between the Top and Bottom Layers of Needled GCLs | ||
| Standard Test Method for Evaluation of Hydraulic Properties of Geosynthetic Clay Liners Permeated with Potentially Incompatible Liquids | ||
| Standard Test Method for Tensile Strength of Geosynthetic Clay Liners |
GCL Specific Guides & Practices
The following table represents the current Practices, Guides and Recommendations for manufactured geosynthetic clay liners, such as the needlepunched Bentofix®.
| Topic | Method | Title of Standard |
| Storage and Handling of Geosynthetic Clay Liners | ||
| Standard Practice for Quality Control of Geosynthetic Clay Liners | ||
| Obtaining Samples of Geosynthetic Clay Liners | ||
| Standard Guide for Installation of Geosynthetic Clay Liners | ||
| Standard Guide for Acceptance Testing Requirements for Geosynthetic Clay Liners |
Non Specific Tests & Guides
The following table represents the current test methods for the geotextile components of a geosynthetic clay liner, such as the needlepunched Bentofix®. They should not be used for the manufactured GCL.
| Topic | Method | Title of Standard |
| Mass per Unit Area (Weight) of Woven Fabric | ||
| Hydraulic Bursting Strength of Knitted Goods & Nonwoven Fabrics | ||
| Standard Terminology for Geosynthetics | ||
| Tensile Properties of Geotextiles by the Wide-Width Strip Method | ||
| Grab Breaking Load and Elongation of Geotextiles | ||
| Specification Conformance | Standard Practice for Determining the Specification Conformance of Geosynthetics | |
| Index Puncture Resistance of Geotextiles, Geomembranes and Related Products | ||
| Measuring Nominal Thickness of Geotextiles and Geomembranes | ||
| Measuring Mass per Unit Area of Geotextiles | ||
| Determining the Coefficient of Soil and Geosynthetic or Geosynthetic and Geosynthetic Friction by the Direct Shear Method | ||
| Obtaining Samples of Geosynthetics from a Test Section for Assessment of Installation Damage |
