Materials Testing

When you need a firm that can provide a one-stop shop for construction related QA/QC, look to our team at Olsson.


Nick Calton

Joplin, Missouri


Get in Touch  

Here, you’ll find the staff and lab services you need under one roof. Our experts have a depth and breadth of experience in inspection and testing, including, but not limited to, soils, concrete, aggregate, masonry, reinforcing steel, wood, structural steel, precast concrete, fireproofing, and asphaltic concrete.

Olsson provides facilities and services you won’t find just anywhere, like our centrally located structural steel lab and Nondestructive Testing. Our labs are accredited by the AASHTO Materials Reference Laboratory and certified by the U.S. Army Corps of Engineers.


Nuclear Density Testing

Sand Cone Testing

Dynamic Cone Penetrometer (DCP) Testing

Soil Classification and Identification (USCS/Visual-Manual/AASHTO)

Atterberg Limits

Particle Size Distribution (Sieves and Hydrometer)

Specific Gravity of Soils

Moisture Content, Density, Void Ratio, and Saturation of Intact Specimens

Moisture-Density Relationship (Proctor)

  • Standard effort
  • Modified effort
  • Soil-chemical mixtures (cement, lime, fly-ash, etc.)


  • Consolidation
  • Swell
  • Collapse

Unconfined Compressive Strength

Triaxial Compression

  • Unconsolidated – undrained
  • Consolidated – undrained
  • Consolidated – drained

Direct Shear

  • Consolidated – drained

California Bearing Ratio (CBR)

Dispersive Characteristics

  • Crumb
  • Pinhole

Organic Matter

  • Organic (ash) content of soil
  • Organic impurities in aggregates


  • Flexible wall permeameter
  • Permeability of granular soils

Aggregate Quality Testing

  • Soundness – magnesium sulfate
  • Abrasion – Los Angeles
  • Specific gravity and absorption
  • Clay lumps and friable particles
  • Percentage of fractured faces
  • Lightweight particles in aggregate


Concrete, Masonry, and Cement Testing Services

Fluid Concrete Testing (ACI Level I Field Tester Certification)

Concrete Strength Testing (ACI Concrete Strength Testing Technician)

Slump, Air Content, Unit Weight, and Yield Testing

Compressive Strength

  • Hardened concrete
    • Destructive
    • Nondestructive
  • Block and block prisms
  • Cement, mortar, and grout
  • Drilled cores and sawed beams


  • Fluid/plastic concrete, grout, and mortar
  • Hardened concrete (cores/beams)
  • Concrete masonry and related units
  • Aggregates for concrete

Flexural Strength

  • Third-point loading
  • Center-point loading
  • Splitting – tensile

Length Change of Hardened Concrete

Alkali-Silica Reactivity (ASR) Testing

Vapor Emissions and pH Testing

Relative Humidity Testing

Reinforcing Steel Locating (Profometer and GPR)

Floor Flatness and Levelness

Mix Design Verifications


Asphalt Laboratory Services

Reducing Samples

Theoretical Maximum Specific Gravity

Oil Content (Extraction or Burn Off)

Bulk Specific Gravity

Marshall Density, Stability, and Flow

Percent Air Voids

Mechanical Sieve Analysis

Mix Designs Verification

  • Marshall
  • Superpave


Laboratory Certifications


Arkansas, Kansas, Colorado, Iowa, Nebraska, Missouri, and Oklahoma Departments of Transportations

U.S. Army Corps of Engineers (USACE)


Structural Steel Field Testing

Skidmore Wilhelm Bolt Testing

Ultrasonic/Phased Array

Magnetic Particle Testing

Liquid Dye Penetrant Testing

Radiographic Testing (X-ray)

Eddy Current

Writing Welding/Bolting Procedures


Certification of Welders

Metals Laboratory



American Concrete Institute (ACI)

American Society for Nondestructive Testing (ASNT)

American Portable Nuclear Gauge Association

Arkansas, Kansas, Colorado, Iowa, Nebraska, Missouri, and Oklahoma Departments of Transportation

National Institute of Certified Engineering Technologies (NICET)