Laboratory Testing


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Mr. Devin is able to perform a range of Standard Geotechnical Laboratory Testing in-house as a component of his geotechnical consulting services.  Such services are not available to clients outside of this framework.  Mr. Devin does not provide construction materials testing QA/QC services.

Many of the tests listed below are performed in-house but they may also be sub-contracted to an outside laboratory.  This is particularly true of the laboratory volume change (consolidation, expansion, etc), strength, and permeability tests.

Field tests are also listed along side the laboratory tests below for convenience.


Soil, Rock, and Aggregate Testing

Classification / Aggregates
  • Particle-Size Analysis of Soils (ASTM D 422 / D 6913)
    • with Hydrometer
    • without Hydrometer
    • Hydrometer alone on minus No. 10 or minus No. 40
  • Amount of Materials in Soils Finer Than the No. 200 (75-mm) Sieve (ASTM D 1140)
  • Specific Gravity of Soil Solids by Water Pycnometer (ASTM D 854)
  • Water (Moisture) Content of Soil and Rock by Mass (ASTM D 2216)
  • Liquid Limit, Plastic Limit, and Plasticity Index of Soils (D 4318)
  • Specific Gravity and Absorption of Coarse Aggregate (ASTM D C 127)
  • Specific Gravity and Absorption of Fine Aggregate (ASTM D C 128)
  • Sand Equivalent (ASTM D 2419)

  • Laboratory Compaction Characteristics of Soil Using Standard Effort (ASTM D 698)
    • with TDR (ASTM D 6780 Method B) Soil Constants Determination
  • Laboratory Compaction Characteristics of Soil Using Modified Effort (ASTM D 1557)
    • with TDR (ASTM D 6780 Method B) Soil Constant Determination
  • Compaction Check Point (4 inch or 6 inch mold)
  • Water Content and Density of Soil in Place by TDR (ASTM D 6780)
  • Density and Unit Weight of Soil in Place by the Sand-Cone Method (ASTM D 1556)
  • Density and Unit Weight of Soil in Place by the Rubber Balloon Method (ASTM D 2167)
  • Oversize Material Correction (ASTM D 4718)




  • Unconfined Compressive Strength of Cohesive Soil (ASTM D 2166)
  • Point Load Strength Index of Rock (ASTM D 5731)
  • Rock Hardness by the Rebound Hammer Method (ASTM D 5873)


  • Direct Shear Test of Soils under Consolidated Drained Conditions (ASTM D 3080) (subcontract)
  • Unconsolidated-Undrained Triaxial Compression Test on Cohesive Soils (ASTM D 2850) (subcontract)
  • Consolidated Undrained Triaxial Compression Test for Cohesive Soils (ASTM D 4767) (subcontract)
  • Compressive Strength and Elastic Moduli of Intact Rock Core Specimens (ASTM D 7012) (subcontract)


Volume Change (Consolidation / Swell / Collapse)
  • Expansion Index of Soils (ASTM D 4829)
  • One-Dimensional Consolidation Properties of Soils (ASTM D 2435)
  • One-Dimensional Swell or Settlement Potential of Cohesive Soils (ASTM D 4546)
  • Collapse Potential of Soils (ASTM D 5333)


Hydraulic Conductivity / Permeability

Pavement Section (Base Course / Subbase Course /  Subgrade)

Site Characterization                           

Groundwater Level Monitoring



Important Note:   Testing services identified as “pending” are currently unavailable.  These services may be available at a future date.  Please contact us for current and/or anticipated availability of these services.  Some services described herein may be subcontracted as required.