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our commitment to quality

Laboratory testing procedures and equipment are subject to routine audits by both internal and external quality assurance/quality control personnel. Our accurate and reliable results are based on strict adherence to guidance provided by the American Society of Testing Materials, AASHTO, the Geosynthetic Research Institute and the U.S. Army Corps of Engineers.

Over 30 years of experience

RSA Geolab LLC has been researching and assessing geosynthetic material for over 30 years. Backed by accreditation from the Geosynthetic Research Institute (GRI), United States Army Corps of Engineers, and etc., we can assure you we know what we’re doing. We strive to meet and exceed the standards and requirements of these accrediting agencies.


That is how our lab began, and that is how we continue to work. Our testing standards are based on strict adherence to the guidance provided by the aforementioned agencies. RSA has extensive comprehensive experience with all types of geosynthetics and their applications. Laboratory testing procedures and equipment are subject to routine audits by both internal quality control and external regulators for complete quality assurance. Please scroll down below to view the most common geosynthetic tests.


  • Thickness - D1777
  • Permittivity - D4491
  • Trapezoidal Tear - D4533
  • Grab Breaking Load/Elongation - D4632
  • Apparent Opening Size - D4751
  • Index Puncture Resistance - D4833
  • Seam Strength - D4884
  • Mass per Unit Area - D5261
  • CBR/Static Puncture - D6241


  • Puncture Resistance - FTMS 101c - Method 2065
  • Specific Gravity/Density by Displacement - D792
  • Strip Tensile - D882
  • Initial Tear Resistance - D1064
  • Dimensional Stability - D1204
  • Carbon Black Content - D4218
  • Core Thickness - D5199
  • Dispersion of Carbon Black - D5596
  • Puncture - D5994
  • Peel and Shear - D6392/6496
  • Tensile Properties - D6693


  • Ply Adhesion - F904
  • Compressive Behavior - D1621
  • Carbon Black - D4218
  • Tensile Properties by Wide-Width Strip Method - D4595
  • Hydraulic Transmissivity - D4716
  • Breaking Force/Elongation - D5035
  • Thickness - D5199
  • Breaking Force - D7179

Geosynthetic Clay Liner

  • Index Flux/Permeability - D5887
  • Swell Index - D5890
  • Fluid Loss - D5891
  • Bentonite Mass per Unit Area - D5993
  • Internal Shear Resistance - D6243
  • Bond Peel Strength - D6496
  • Tensile Strength - D6768

Direct Shear Testing

  • Geosynthetics vs Soil
  • Geosynthetics vs Geosynthetics
  • Geosynthetics vs GCL
  • GCL vs Soil