Laboratory Services

Blackburn Consulting performs a wide range of tests for soils, concrete, masonry and hot mix asphalt. We are accredited by the American Materials Reference Laboratory (AMRL), Cement and Concrete Reference Laboratory (CCRL), Caltrans, and the United States Army Corp of Engineers. We also participate in the AMRL, CCRL and Caltrans proficiency sample programs.
We list some of our tests below:

Concrete and Masonry

    • Grout/Mortar
    • Compression Testing


    • Durability
    • Sieve Analysis
    • Specific Gravity
    • Sand Equivalent
    • Cleanness Value


    • Sieve Analysis
    • Atterberg Limits
    • Standard and Modified Proctor
    • Consolidation
    • Expansion Index
    • Unconfined Compression
    • Direct Shear
    • Triaxial Compresssion
    • Permeability
    • R-Value
    • CBR


    • Density
    • Extraction and Gradation
    • Binder and Void Content
    • Stability
    • Specific Gravity
Our laboratory personnel are experienced and maintain various Caltrans and ACI certifications. We perform tests in accordance with ASTM, USACE, or Caltrans standards.