Testing

Yes. We operate comprehensive in‑house geotechnical laboratories located in Seven Hills, Wollongong and the Gold Coast. Our labs are NATA‑accredited and equipped with advanced geotechnical, geo‑environmental and materials testing systems. This allows us to deliver high‑quality, repeatable and fast‑turnaround results that support design, construction, mining and infrastructure programs.

Our laboratory capabilities include:

Soil Testing

We provide a full suite of geotechnical soil characterisation tests essential for design, classification and construction control, including:

• Atterberg limits, moisture content, particle size distribution
• Standard and Modified Proctor compaction
• CBR (California Bearing Ratio)
• Permeability (falling head, constant head, triaxial permeability)
• Shrink–swell behaviour, linear shrinkage, plasticity index
• Emerson class number, dispersivity/pinhole erosion testing
• Geo‑environmental testing for contaminated soils and geosynthetics (e.g., interface shear, swell index, consolidation of contaminated specimens)

These tests support geotechnical design, foundation assessments, pavement design and bulk earthworks quality assurance.

Rock & Aggregate Testing

Our rock mechanics specialists deliver testing for civil structures, mining and quarry assessments, including:

• UCS (uniaxial compressive strength) – soil, rock and concrete
• Point load testing (axial, diametral)
• Indirect tensile strength (Brazil test)
• Direct shear of intact rock and discontinuities
• Rock durability indices (slake durability)
• Rock modulus and Poisson’s ratio
• Aggregate grading, bulk density and conformance testing

These services help characterise strength, deformability and long‑term performance of rock and aggregate materials.

Construction Materials Testing

We support civil construction projects with materials conformance testing to Australian Standards, TfNSW, ASTM and ISRM methods, including:

• Pavement subgrade/support assessment
• Base and subbase compliance testing
• Concrete compressive strength
• Soil stabilisation testing
• Thermal resistivity, conductivity
• Chemical parameters (pH, chloride, sulphate, organic content)

Our laboratory teams and specialist geomechanical section provide rapid, accurate compliance data for critical construction decision‑making.

Earthworks & On‑Site Testing

To keep construction programs progressing, we offer:

• Field density testing (nuclear gauge, sand replacement)
• In‑situ compaction verification
• Level 1 and Level 2 AS3798 supervision
• TfNSW Level 3 accredited earthworks testing
• Foundation inspections, test rolls, stripping checks
• Pavement and drainage testing, Benkelman beam assessments

Our workflows use industry‑leading CMT software and paperless systems to deliver fast reporting, productivity gains and smooth end‑of‑month invoicing.

Speciality and Advanced Testing

As one of Australia’s leading specialty geomechanics laboratories, we deliver:

• Consolidated, undrained and drained triaxial testing (UU, CU, CD)
• Unsaturated soil mechanics testing (SWCC, axis translation, unsaturated triaxial)
• Consolidation with creep, rebound, customised load paths
• Triaxial permeability with contaminated fluids/toxic interfaces
• XRD mineralogy, petrography, SIROQUANT
• Acid sulphate and acid mine drainage testing (SPOCAS, NAPP, NAG)
• Bespoke, project‑specific testing programs for research or complex design inputs

Our technical specialists regularly develop custom testing methodologies to solve unique engineering challenges.

Our Commitment

Across all locations, we prioritise:

• High quality and repeatability
• Industry‑leading technical capability
• Rapid turnaround for time‑sensitive programs
• Clear, practical reporting tailored to engineer and contractor needs

Our team of geotechnical engineers, scientists and specialist laboratory managers ensures every project receives expert attention from sampling through to final reporting.

Alliance operates multiple offices and laboratories to service Sydney and NSW, the Illawarra, and South-East Queensland:

• Seven Hills (North-West Sydney) – Main office and geotechnical testing laboratory
• Wollongong (Illawarra region) – Field operations and laboratory services
• Gold Coast (South-East QLD) – Consulting team and materials testing lab

This network enables responsive turnaround times, local knowledge of ground conditions, and cost-effective logistics across nearby councils and development precincts.

We primarily service Sydney metro, Greater Western Sydney, North-West Sydney, Illawarra/Wollongong, Greater NSW, and South-East Queensland (Gold Coast and surrounds). For larger projects, we can mobilise field crews and lab capacity to other regions we frequently conduct geotechnical investigations for renewable projects all over Australia.

Alliance works across:

• Property development – Subdivisions, mixed-use, multi-residential, commercial
• Construction – Foundations, earthworks, retaining structures, pavements
• Infrastructure – Roads, bridges, utilities, rail, ports
• Industrial – Warehousing, logistics, manufacturing
• Local & state government – Public works, community assets, compliance
• Environmental remediation – Contaminated land, waste classification, RAP implementation

Whether your project is in metro Sydney, regional NSW, the Illawarra or Gold Coast, our integrated field, lab and advisory teams ensure a smooth path from investigation to delivery.

Yes. Alliance’s testing and consulting adhere to relevant Australian Standards, industry codes and regulatory guidelines applicable to NSW and QLD projects. Our laboratories and reporting practices are aligned with best-practice QA/QC to support planning approvals, certification, and construction compliance.

Turnaround depends on scope, sample volume and test type, but we offer rapid scheduling and expedited laboratory processing when needed. Typical ranges:

• Field investigations: 1–2 weeks from booking (subject to scope and access)
• Standard soil classification tests: 2–5 business days from sample receipt
• Specialty tests (e.g., triaxial, permeability): 5–10 business days We’ll confirm timelines upfront and can prioritise critical-path results to align with construction or design milestones.