Materials Testing


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Materials Testing

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CRD & Associates Materials Testing Laboratory maintains the equipment and materials to accomplish a wide variety of soils, aggregates, asphalt, and concrete tests.

Accredited by:
  • American Association of State Highway & Transportation Officials Laboratories
  • AASHTO
  • AMRL - AASHTO Materials Reference Laboratory
  • CCRL - Cement and Concrete Reference Laboratory




In the soils area, our experience and capabilities include auger and core drilling, standard penetration tests, thin walled tubes, and non-destructive testing including thermography and ground - penetrating radar.

Tests performed include:
  • Dry unit wieghts & moisture
  • Atterburg limits
  • Standard/ Modified Proctor tests
  • Nuclear compaction tests for soils, aggregates, & asphalt pavements
  • Asphalt marshalls & core densities
  • Aggregate gradations
  • Sand cone confirmation tests
  • Slump and air content
  • Compression strength cylinders
  • Flexural strength beams
  • Thickness cores