Geotechnics. Lab tested.

Geotechnics was selected by the ASTM Institute for Standards Research (ASTM/ISR) to participate in a prestigious comprehensive inter-laboratory testing program. The program was designed to obtain reliable estimates of testing precision, reproducibility, and repeatability. The research project compared data from general classification testing as well as triaxial and direct shear, unconfined compression, compaction, one-dimensional consolidation and permeability testing.

Rock with axis for geotechnical testing

GEOTECHNICAL TESTING

AGGREGATES

  • Sieve
  • Insoluble Residue in Carbonate Aggregates
  • Clay Lumps and Friable Particles in Aggregates
  • LA Abrasion, Coarse & Fine Aggregates
  • Rigid Wall Permeability, 6” to 12” Diameter
  • Soundness
  • Slake Durability
  • Durability of Rock by Freeze Thaw
  • Bulk Specific Gravity, Coarse & Fines

CLASSIFICATION

  • USCS Classification
  • Visual Description
  • Water Content
  • Sieve Analysis
  • Hydrometer Analysis
  • Atterberg Limits
  • Shrinkage Limit
  • Specific Gravity
  • Loss On Ignition
  • Soil Fertility

CONCRETE & GROUT

  • Unconfined Compression
  • Split Tensile
  • Density, Absorption and Voids in Hardened Concrete
  • Density, Yield & Air Content of Concrete
  • Slump of Hydraulic Cement Concrete
  • Air Content of Freshly Mixed Concrete by the Pressure Method
  • Time of Setting by Vicat Needle
  • Temperature of Freshly Mixed Hydraulic Cement Concrete
  • Expansion and Bleeding of Freshly Mixed Concrete in the Laboratory
  • Flow of Grout for Preplaced-Aggregate Concrete (Flow Cone Method)
  • Flow Table for Use in Tests of Hydraulic Cement and Grouts

CONCRETE, ROCK, AND GROUT TESTING

  • Point Load
  • Unconfined Compression
  • Soundness, 5 Cycles
  • Slake Durability, 2 Cycles
  • Unconfined Compression
  • Durability of Rock by Freeze Thaw
  • Unconfined Compression

CONSOLIDATION & SWELL POTENTIAL

  • One Dimensional Consolidation
  • Expansion of Soils

CORROSITIVITY TESTING

  • Minimum Resistivity
  • Soil Chlorides
  • Soil Sulfates
  • Soil ph for Corrosion Testing
  • Thermal Conductivity

DENSITY TESTS

  • Standard Proctor
  • Modified Proctor
  • Relative Density
  • Minimum Density
  • Bulk Density Of Shelby Tubes

PERMEABILITY

  • 3″-4″ Diameter Flex Wall
  • 12″ Inch Flex Wall Permeability
  • 4-12″ Diameter Rigid Wall

ROCK

  • Point Load
  • Unconfined Compression, Peak Only
  • Unconfined Compression, Young’s Modulus
  • Unconfined Compression, Poisson’s Ratio
  • Direct Shear of Rock Core
  • Split Tensile
  • Soundness
  • Slake Durability
  • Durability of Rock by Freeze Thaw
  • Bulk Specific Gravity

SOIL DISPERSION

  • Crumb Test
  • Pinhole Test
  • Double Hydrometer

STRENGTH TESTING

  • California Bearing Ratio
  • Unconfined Compression
  • Peak Direct Shear
  • Residual Direct Shear
  • Peak Direct Shear (12″ Shear Box)
  • Unconsolidated Undrained, UU Triaxial
  • Consolidated Undrained, CU Triaxial
  • Resilient Modulus

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GEOSYNTHETIC TESTING

GEOMEMBRANES

  • Peel and Shear
  • Thickness
  • Asperity
  • Density
  • Melt Flow Index
  • Carbon Black Content
  • Carbon Black Dispersion
  • Tear Resistance
  • Puncture Resistance
  • Tensile Properties
  • Dimensional Stability
  • Constant Load (Single Point Test)

GEONETS AND GEOCOMPOSITES

  • Mass per Unit Area
  • Thickness
  • Density
  • Melt Flow Index
  • Carbon Black Content
  • Tensile
  • Strip Tensile
  • Transmissivity
  • Compressive Behavior
  • Ply Adhesion

GEOSYNTHETIC CLAY LINERS

  • Bentonite Mass per Unit Area
  • Tensile
  • Peel Strength
  • Swell Index
  • Internal Shear
  • Index Flux or Permeability
  • Fluid Loss

GEOTEXTILES

  • Mass per Unit Area
  • Thickness
  • Grab Strength
  • Trapezoidal Tear
  • Puncture Resistance
  • Mullen Burst
  • Permittivity
  • Apparent Opening Size (AOS)
  • Wide Width, Typical Nonwovens
  • CBR Puncture

INTERFACE FRICTION BY DIRECT SHEAR

  • Geosynthetic to Geosynthetic
  • Geosynthetic to Soils
  • Geosynthetic to GCL’s
  • GCL to Soils

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