LABORATORY TESTING

DHLA’S soil laboratory is equipped with state-of-the-art testing equipment managed by highly trained, qualified technicians. Our laboratory services have been utilized by consulting firms and engineering contractors throughout southern California and nationwide. Much of our testing equipment is automated to include test control and data acquisition by computers. All DHLA laboratory testing conforms strictly to the standards of the American Society for Testing Materials (ASTM).

Our laboratory capabilities include the following procedures:

  • Moisture & Density Determination
  • Particle Size Analysis
  • Expansion Index
  • Consolidation Tests
  • Expansion Tests
  • Specific Gravity For Soil & Rock
  • Maximum Density Determination For Relative Compaction
  • Sand Equivalent
  • Direct & Residual Shear Strength

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