Laboratory Testing

BGL offers an extensive range of geotechnical laboratory testing for soils & aggregates using both NZ and international standards.

Our IANZ Certificate of Accreditation can be viewed online at: 

Classification Testing

  • Water Content
  • Atterberg Limits: liquid, cone penetration & plastic limits / plasticity index / Linear Shrinkage
  • Solid Density
  • Grading / Particle-size Distribution (PSD) Testing – wet sieve & hydrometer

Chemical Testing

  • pH Value
  • Presence of Allophane

Compact Testing

  • Dry Density / Water Content Relationship – NZ Standard & NZ Heavy Compaction
  • Single Point Compaction

Consolidation Testing

  • One Dimensional Consolidation (Odometer) Testing with automated data capture

Permeability Testing

  • Saturated & consolidated test in triaxial apparatus

Strength Testing

  • California Bearing Ratio (CBR) – soaked & unsoaked
  • CBR Lime / Cement Reactivity Testing
  • Unconfined Compressive Strength (UCS)
  • Triaxial – consolidated, undrained, with porewater pressure measurement
  • ‘Quick’ Triaxial – unconsolidated, undrained, without porewater pressure measurement
  • Shear Box – peak, post-peak & residual shear strength
  • Soil/geomembrane interface testing
  • Point Load Strength Index Test
Electronic data outstanding and comprehensive. Feedback during testing great!

James Elvy, Aurecon