Geosynthetic Institute
GRI
Specifications, Guides and Practices
GRI Specifications GT10 - Test Methods, Properties and Frequencies for High
Strength Geotextile Tubes used as Coastal and Riverine Structures GT12(a) - Test Methods and Properties for Nonwoven
Geotextiles Used as Protection (or Cushioning) Materials (ASTM) GT12(b) - Test Methods and Properties for Nonwoven
Geotextiles Used as Protection (or Cushioning) Materials (ISO) GT13(a) - Test Methods and Properties for Geotextiles Used
as Separation Between Subgrade Soil and Aggregate (ASTM) GT13(b) - Test Methods and Properties for Geotextiles Used
as Separation Between Subgrade Soil and Aggregate (ISO) GT16 - Test Methods, Properties and Frequencies for
Geotextile Grout Filled Mattresses (GGFM) GN4 – Test Methods, Required Properties and Testing
Frequency for Biplanar Geonets and Biplanar Geonet Composites GM13 - Test Methods, Test Properties and Testing Frequency
for High Density Polyethylene (HDPE) Smooth and Textured Geomembranes GM17 - Test Methods, Test Properties and Testing Frequency
for Linear Low Density Polyethylene (LLDPE) Smooth and Textured Geomembranes GM18 - Test Methods, Test Properties and Testing Frequencies for
Flexible Polypropylene (fPP and fPP-R) Nonreinforced and Reinforced
Geomembranes GM19a - Seam Strength and Related Properties of Thermally
Bonded Homogeneous Polyolefin Geomembranes/Barrier ·
Complete
Written Text (Spanish) GM19b - Seam Strength and Related Properties of Thermally
Bonded Reinforced Polyolefin Geomembranes/Barriers |
GRI Specifications GM21 - Test Methods, Properties, and Frequencies for
Ethylene Propylene Diene Terpolymer (EPDM) Nonreinforced and Scrim Reinforced
Geomembranes GM22 - Test Methods, Required Properties and Testing
Frequencies for Scrim Reinforced Polyethylene Barriers Used in Exposed
Temporary Applications GM25 - Test Methods, Test Properties and Testing Frequency
for Reinforced Linear Low Density Polyethylene (LLDPE-R) Geomembranes GM28 - Test Methods, Test Properties and Testing
Frequencies for Reinforced Chlorosulfonated Polyethylene
(CSPE-R) Geomembranes GM30 - Test Methods, Test Properties and Testing Frequency for
Reinforced Composite Polyethylene (RCPE) Geomembranes GM34 - Test Methods, Test Properties and Testing Frequency for Ethylene Interpolymer Alloy (EIA=PVC+KEE) Geomembranes
GM38 - Standard Specification for Test Methods, Test Properties and Testing Frequency for Bituminous Geomembranes (BGM)
GCL3 - Test Methods, Required Properties, and Testing
Frequencies of Geosynthetic Clay Liners (GCLs)
GC14 - Test Methods, Required Properties and Testing
Frequency for Polymeric Turf Reinforcement Mats GC16
- Test Methods, Required Properties and Testing Frequency for Prefabricated
Vertical Drains (PVDs) GS15 - Test Methods, Test Properties and Testing Frequency
for Geocells Made From High Density Polyethylene (HDPE) Strips GS19 - Test
Methods, Required Properties and Testing Frequency for GS33 - Standard Specification for Test Methods, Test Properties and Testing Frequency for Polyolefin (Film) Barriers
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GRI Guides GN2 &
GC13 - Joining
and Attaching Geonets and Drainage Composites GM10 - The Stress
Crack Resistance of HDPE Geomembrane Sheet (Procedure for NCTL Test) GM20 - Selecting
Variable Intervals for Taking Geomembrane Destructive Seam Samples Using
Control Charts GCL4 - Gripping of
Reinforced GCLs to End Platens During Direct (Interface) Shear Testing GCL 5 - Design
Considerations for Geosynthetic Clay Liners (GCLs) in Various Applications GC8 - Determination of the Allowable Flow Rate of a
Drainage Geocomposite GS3 - Selecting
In-Situ Monitoring Methods and Devices for the Evaluation of Geosynthetic
Performance GS11 - Constructing
Test Pads to Assess Protection Materials Intended to Avoid Geomembrane
Puncture GS16 - Geosynthetic
Sampling for Subsequent Laboratory Conformance Testing GS26 - Attaching Foil Strain Gauges to Geosynthetics
GRI Practices GT7 - Determination
of the Long-Term Design Strength of Geotextiles GT11 - Installation
of Geotextile Tubes used for Coastal and Riverine Structures GG4(a) - Determination
of the Long-Term Design Strength of Stiff Geogrids GG4(b) - Determination
of the Long-Term Design Strength of Flexible Geogrids GM9 - Cold Weather
Seaming of Geomembranes GM32 - Geomembrane
Seaming Using Data Acquisition Hot Wedge Welding Devices GS20 - Exposed
Lifetime Prediction of Geosynthetics Using Laboratory Weathering Devices |