Construction Materials Testing

Northern Technologies, LLC (NTI) offers a staff of professional engineers, engineering technicians, laboratory technicians, and special inspectors who are licensed and/or certified to provide a wide variety of field and laboratory services. Our labs meet all industry standards and go through continuous quality assurance audits to meet our client’s quality and consistency expectations.

We handle the toughest of jobs and schedules as required for a wide variety of transportation and building projects. NTI provides comprehensive construction materials testing services to monitor quality control on your project. These services include laboratory and field testing of soil, concrete, masonry, asphalt aggregate, and building stone materials.

Special Inspections

  • Concrete
  • Reinforcing steel
  • Masonry/Mortar
  • Structural steel/High strength bolting
  • Fireproofing
  • Firestopping

Structural Steel

  • AWS welding inspections
  • Bolt torque
  • Nondestructive testing of welds

Soil Testing

  • Nuclear and sand cone moisture/density
  • Moisture/density relation of soil (proctor)
  • Sieve analysis
  • Topsoil analysis
  • Monitoring of engineered fill placement
  • Compaction testing

Asphalt testing

  • Extraction/gradation analysis
  • Marshall properties
  • Field process control testing
  • Thickness and in-place density by core removal
  • DOT mix verification

Concrete Testing

  • Monitoring concrete placement
  • Documenting plastic concrete properties including slump, air content, temperature and unit weight
  • Casting specified test specimens
  • Strength tests of hardened concrete specimens

Masonry Testing

  • Physical properties of masonry units (brick block, retaining wall and building stone)
  • Block prism bond and flexural strength
  • Sampling and testing of grout and mortar

Specialized Concrete Testing and Analysis

  • Performance testing (freeze-thaw, shrinkage and soundness)
  • Location of embedded reinforcing steel
  • Core removal from hardened concrete
  • Chloride ion concentration

Aggregate Testing

  • Sieve analysis
  • Deleterious materials (ASTM)
  • Specific gravity and absorption
  • Abrasion
  • Soundness
  • Unit weight
  • Crushing

Want to learn more about Northern Technologies, LLC and our Construction Materials Testing expertise?