Geotechnical Testing

Tests performed at our NATA Acreddited Laboratory


Soil Testing Brisbane, Ipswich & Gold Coast regions.

House site investigations and footing inspections are a major component of our soil testing capabilities. We've been conducting soil tests for new homes, existing homes & extensions in and around the Brisbane area for over 30 years.

In Addition to domestic soil testing Queensland Geotechnical Services is able to perform soil tests in and around the Brisbane metro area and greater South East Queensland region for bulk earthworks (cut & fill operations) and other construction materials testing. We're equipped to conduct compliance & compaction testing in accordance with the relevant Australian Standards. Soil testing Brisbane and the wider south east Queensland region for commercial developments is another aspect of our soil testing capabilities we regularly conduct SPT & DCP testing for unit multi-level unit complexes.

Our geotechnical engineering laboratory is NATA Accredited & equipped to conduct these tests and provide compliance certificates where required. The Queensland Geotechnical team is focused on prompt, high quality service and absolute integrity in our work.

Soil testing services that we offer include:

 Soil Testing for new homes or extensions to exisiting homes
 Pre-Purchase soil testing for prospective home buyers
 Level One Supervision for bulk earthworks and building pads
 Geotechnical site investigation & bore holes / drilling
 Footing Inspections and Trench Inspections

We also conduct on-site tests according to Australian standards using calibrated apparatus. These tests include;

  • Field Densities

    Soil Testing Brisbane - Earthworks Density Testing / Compaction Test

    Field Density testing would be amongst the most common. Its purpose is to determine the Field Dry Density and Moisture Content of the material being tested. The Field Dry Density is compared with a laboratory compaction test to produce a ratio between field and laboratory compaction.

     Australian Standard: 1289 5.3.1
  • Compaction

    Soil Testing Brisbane - Compaction Testing / Compaction Certificates for Earthworks

    Compaction testing as carried out in a soil testing laboratory is done to determine the Maximum Dry Density and the moisture content at which that is achieved known as the Optimum Moisture Content

    This data is used to compare to the Field Dry Density (see Field Densities above) to determine the Density Ratio and Moisture Variation

    Australian Standard: 1289 5.1.1 & 5.2.1
  • Atterberg Limit / Plasticity Index

    Soil Testing Brisbane - Atterberg Limit Tests / Plasticity Index Testing

    Atterburg Limits cover a range of soil tests relating to reactivity to moisture (water), better known as Plasticity. These tests include Liquid Limit, Plastic Limit, Plasticity Index and Linear Shrinkage. Atterburg Limits play an important part when classifying soil types and work in conjunction with Particle Size Distribution tests.

    Australian Standards: 1289 3.1.1, 3.1.2, 3.2.1 & 1289 3.3.1, 3.4.1
  • C.B.R (California Bearing Ratio)

    Soil Testing Brisbane - C.B.R Testing / California Bearing Ratio Tests

    CBR stands for Californian Bearing Ratio which is used to determine the compressive strength of a soil usually for the purpose of determining the "Box Depth" of a road pavement. Soaked CBRs must remain under water for 4 days before being measured for shrinkage or swell and then tested as to there bearing capacity in that state. (The test usually takes 7 to 10 days in total).

     Australian Standard: 1289 6.1.1
  • Gradings (Particle Distribution Test)

    Soil Testing Brisbane - Gradings - Particle Distribution

    Particle Size Distribution test results (or Gradings) are used for many reasons such as determining the compliance of manufactured gravels with required standards and specifications in the earthwork and concrete stages  of construction works.

    This Soil test is also part of the process used to classify a soil sample in conjunction with Atterburg Limits testing.

     Australian Standard: 1289 3.6.1
  • D.C.P (Dynamic Cone Penetration) / S.P.T (Standard Penetration)

    Soil Testing Brisbane - D.C.P & S.P.T Testing

    Field penetration tests are often required by civil engineers, our lab can quickly provide Dynamic Cone Penetrometer tests (DCPs) to suit your needs. These are typically used on soils, gravels are generally not tested using this method.

    Our larger drill rig carries calibrated equipment designed for testing Standard Penetration Tests (SPTs) which are sometimes required for larger commercial structures. 

    Australian Standard: 1289 6.3.1, 6.3.2
  • Level One Supervision

    Soil Testing Brisbane - Level One Supervision

    Level One Supervision has become a standard requirement or at least a serious recommendation for all building development sites. Following the standard AS3798, ensures an earthworks site has been filled and compacted to a high standard under controlled conditions.

    Australian Standard: 1289, AS3798
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Queensland Geotechnical