GeoSystems Consultants, Inc.
Geotechnical Engineering and Laboratory Testing

Celebrating 20 years of service

Geosynthetics


Tests performed by the GeoSystems geosynthetics laboratory include both standard and specialized procedures for determination of physical and engineering properties of geosynthetics. All laboratory staff receive test performance training based on American Standards for Testing Materials (ASTM), Geosynthetic Accreditation Institute (GAI), and GeoSystems' own in-house quality assurance standards.

 

GeoSystems uses automated data collection systems on selected geosynthetic tests. This serves to reduce human error and improve the overall quality of the test results in the laboratory.

 

GeoSystems' laboratory provides index properties and performance properties testing on geotextiles, geomembranes, geosynthetic clay liners, and geonets:

Geomembranes

ASTM D 5199  Thickness
ASTM D 792    Density
ASTM D 638    Tensile Properties
ASTM D 751    "
ASTM D 882    "
ASTM D 4833  Puncture Resistance
ASTM D 1004  Tear Resistance
ASTM D 6392  Seam Peel/Shear
ASTM D 4885  Wide Width Tensile
ASTM D 5321  Direct Shear
                        - Geo to Geo
                        - Geo to soil
 
Geotextiles
ASTM D 5199  Thickness
ASTM D 5261  Mass per Unit Area
ASTM D 4751  Apparent Opening Size
ASTM D 4491  Permitivity
ASTM D 4833  Puncture Strength
ASTM D 4533  Trapezoidal Tear Strength
ASTM D 4632  Grab Tensile
ASTM D 4595  Wide Width Tensile
ASTM D 4884  Seam Strength

 

Geosynthetic Clay Liners
GRI GCL1        Permeability
ASTM D 4643  Bentonite Moisture Content
USP-NF-XVII    Bentonite Swell Index
ASTM D 5261  Mass per Unit Area
 
Geonets
ASTM D 5199  Thickness
ASTM D 792    Density
ASTM D 5261  Mass per Unit Area
ASTM D 1621  Compressive Strength
ASTM D 4716  Transmissivity
 
Geogrids
ASTM D 4595  Wide Width Tensile
GRI GG1          Rib Tensile
GRI GG2          Junction Tensile