We can carry out testing to NZ and/or International Standards

Our tests include quality control testing, random verification testing (RVT), site sampling and testing and specialist advisory services.

Routine tests for roading aggregates, sealing chip, concrete and asphalt aggregates are as shown below:

  • CBR
  • Clay index
  • Cleanness value
  • Crushing resistance
  • Lightweight particles
  • Los Angeles abrasion
  • Particle size analysis
  • Plasticity index
  • Polished stone value
  • Sand equivalent
  • Size, shape and grading (ALD/AGD)
  • Sodium sulphate soundness.
  • Solid density
  • Weathering resistance
  • Seconded sampling
  • Source/production properties