National Association of Testing Authorities, Australia
Scope of Accreditation
Geotech Pty Ltd
Site
Geotechnical Engineering
Accreditation No.
353
Site No.
346
Date of Accreditation
17 Jul 1961
Contact
Availability
Services available to external clients
Scope of Accreditation
ISO/IEC 17025 (2017)
Infrastructure and Asset Integrity
| Service | Product | Determinant | Technique | Procedure | Limitations |
|---|---|---|---|---|---|
| Evaluation of geotechnical and civil construction material - Aggregate abrasion | Aggregates | Abrasion resistance | Ball mill |
AS 1141.28 |
|
| Abrasion resistance | Los Angeles machine value |
AS 1141.23 |
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| Evaluation of geotechnical and civil construction material - Aggregate contaminants | Aggregates | Foreign material in recycled aggregate | Manual classification |
RC (Vic) Method 372.04 |
|
| Weak particles contaminants | Sieve analysis |
AS 1141.32 |
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| Coarse aggregate quality | Visual comparison |
AS 1141.30.1 RC (Vic) Method 372.01 |
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| Evaluation of geotechnical and civil construction material - Aggregate properties | Aggregates | Shape | Proportional calliper |
AS 1141.14 |
|
| Bulk density | Compacted; Uncompacted |
AS 1141.4 |
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| Shape | Flakiness |
AS 1141.15 |
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| Particle size distribution | Sieve analysis |
AS 1141.11.1 |
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| Particle size distribution | Sieve analysis of material finer than 75 µm |
AS 1141.12 |
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| Particle density of coarse aggregate; Water absorption of coarse aggregate | Not applicable; Weighing-in-water |
AS 1141.6.1 |
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| Sample preparation | Untreated bulk samples |
RC (Vic) Method 301.01 |
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| Particle density of fine aggregate; Water absorption of fine aggregate | Not applicable; Weighing-in-water |
AS 1141.5 |
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| Evaluation of geotechnical and civil construction material - Aggregate soundness | Aggregates | Soundness | Degradation factor on coarse aggregate |
AS 1141.25.2 |
|
| Soundness | Exposure to sodium sulfate solution |
AS 1141.24 |
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| Soundness | Degradation factor on fine aggregate |
AS 1141.25.3 RC (Vic) Method 370.05 |
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| Soundness | Degradation factor on source rock |
AS 1141.25.1 |
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| Evaluation of geotechnical and civil construction material - Aggregate stabilisation | Aggregates | Unconfined compressive strength | Not applicable |
AS 5101.4 |
|
| Evaluation of geotechnical and civil construction material - Aggregate strength | Aggregates | Wet/dry strength variation | Not applicable |
AS 1141.22 |
|
| Aggregate crushing value | Not applicable |
AS 1141.21 |
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| Evaluation of geotechnical and civil construction material - Concrete, grout and mortar consistence in situ | Concrete, grout and mortar | Grout consistency | Not applicable |
AS 2073 (1977) Clause 17 |
|
| Flow of grout | Not applicable |
AS 1478.2 Appendix A and C |
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| Slump flow | Cone |
AS 1012.3.1 |
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| Evaluation of geotechnical and civil construction material - Concrete, grout and mortar permeability | Concrete, grout and mortar | Permeability | Volume change with water absorption - Permeable voids |
AS 1012.21 |
|
| Evaluation of geotechnical and civil construction material - Concrete, grout and mortar properties | Concrete, grout and mortar | Bleeding | In situ analysis - Grout |
AS 2073 (1977) Clause 14 ASTM C940 10a |
|
| Compressive strength | Core; Cube; Cylinder |
AS 1012.9, AS 1012.14 Geotechnical Engineering In House Method 2 |
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| Mass per unit volume - Hardened concrete | Dimensions |
AS 1012.12.1 |
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| Evaluation of geotechnical and civil construction material - Concrete, grout and mortar specimen manufacture and curing | Concrete, grout and mortar | Specimen conditioning | Wet conditioning of hardened concrete core specimens |
AS 1012.14 Geotechnical Engineering In House Method 2 |
|
| Specimen manufacture and curing | Curing cylinder specimens in the laboratory; In situ manufacture and curing of cylindrical specimens; In situ manufacture and curing of grout and mortar cubes; Manufacture and curing of grout and mortar cubes in the laboratory |
AS 1012.8.1 Geotechnical Engineering In House Method 2 |
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| Evaluation of geotechnical and civil construction material - Soil classification | Soils | Linear shrinkage | Not applicable |
AS 1289.3.4.1 |
|
| Plastic limit | Not applicable |
AS 1289.3.2.1 |
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| Liquid limit | Casagrande |
AS 1289.3.1.1 |
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| Liquid limit | Casagrande |
AS 1289.3.1.2 |
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| Particle density | Not applicable |
AS 1289.3.5.1 |
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| Moisture content | Correlation; Drying oven; Microwave oven |
AS 1289.2.1.1, AS 1289.2.1.4, AS 1289.2.3.1 |
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| Description, identification and classification | Not applicable |
AS 1726 Tables 9 and 10 |
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| Sieve analysis | Not applicable |
AS 1289.3.6.1 |
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| Plasticity index | Casagrande |
AS 1289.3.3.1 |
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| Evaluation of geotechnical and civil construction material - Soil compaction characteristics | Soils | Dry density/moisture content relationship | Modified compactive effort |
AS 1289.5.2.1 |
|
| Assignment of optimum moisture content/maximum dry density (OMC/MDD) | Not applicable |
AS 1289.5.4.2 |
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| Dry density/moisture content relationship | Standard compactive effort |
AS 1289.5.1.1 |
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| Evaluation of geotechnical and civil construction material - Soil dispersion | Soils | Dispersion | Emerson class |
AS 1289.3.8.1 |
|
| Evaluation of geotechnical and civil construction material - Soil electrical properties | Soils | Electrical resistance | Not applicable |
AS 1289.4.4.1 |
|
| Evaluation of geotechnical and civil construction material - Soil field density | Soils | Moisture ratio assessment of dry back | Not applicable |
RC (Vic) Method 316.14 |
|
| Density - In situ; Field moisture content | Nuclear gauge |
AS 1289.5.8.1 |
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| Characteristic field density values | Not applicable |
RC (Vic) Method 316.00 |
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| Dry density ratio; Moisture ratio | Calculation; Measured |
AS 1289.5.4.1 |
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| Dry density ratio; Moisture ratio | Statistical selection of reference values |
AS 1289.5.4.3 |
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| Compaction control | Hilf |
AS 1289.5.7.1 |
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| Evaluation of geotechnical and civil construction material - Soil fine particles | Soils | Fine particle analysis | Hydrometer |
AS 1289.3.6.3 |
|
| Evaluation of geotechnical and civil construction material - Soil in situ penetration | Soils | Penetration - In situ | Dynamic cone |
AS 1289.6.3.2 |
|
| Evaluation of geotechnical and civil construction material - Soil laboratory bearing properties | Soils | Bearing ratio | Remoulded specimens |
AS 1289.6.1.1 |
|
| Evaluation of geotechnical and civil construction material - Soil natural contaminants | Soils | Acidity | pH |
AS 1289.4.3.1 |
|
| Evaluation of geotechnical and civil construction material - Soil permeability | Soils | Permeability | Falling head for a remoulded specimen |
AS 1289.6.7.2 |
|
| Permeability | Constant head for a remoulded specimen |
AS 1289.6.7.1 |
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| Evaluation of geotechnical and civil construction material - Soil pre-treatment | Soils | Soil pre-treatment | Repeated compaction pre-treatment |
RC (Vic) Method 301.05 |
|
| Soil pre-treatment | Not applicable |
Geotechnical Engineering Inhouse Method 1 (Free swell test) |
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| Evaluation of geotechnical and civil construction material - Soil sample preparation | Soils | Preparation of disturbed samples | Not applicable |
AS 1289.1.1 RC (Vic) Method 301.01 |
|
| Evaluation of geotechnical and civil construction material - Soil stabilisation | Soils | Laboratory stabilisation of soil | Lime stabilisation |
RC (Vic) Method 301.03 |
|
| Laboratory stabilisation of soil | Cement |
AS 5101.2.2 RC (Vic) Method 301.06 |
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| Sample collection | Aggregates | Not applicable | Quarry aggregate from a drill core; Quarry aggregate from a quarry face; Quarry aggregate from a rock spall; Quarry aggregate from boulders |
AS 1141.3.2 |
|
| Not applicable | Aggregate from a pavement; Aggregate from a stockpile; Aggregate from a windrow |
AS 1141.3.1 |
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| Concrete, grout and mortar | Not applicable | Fresh concrete from deposited concrete |
AS 1012.1 |
||
| Not applicable | Hardened concrete by coring |
AS 1012.14 |
|||
| Not applicable | Fresh concrete from a mixer |
AS 1012.1 |
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| Soils | Not applicable | Site selection - Random stratified sampling |
RC (Vic) Method 316.10 |
||
| Not applicable | Disturbed sampling from earthwork; Disturbed soil sampling from a face; Disturbed soil sampling from a pavement; Disturbed soil sampling from a stockpile; Disturbed soil sampling from a windrow; Disturbed soil sampling in situ |
AS 1289.1.2.1 |
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| Not applicable | Undisturbed soil sampling by air injection sampler; Undisturbed soil sampling by open-drive sampler; Undisturbed soil sampling by piston sampler; Undisturbed soil sampling by rotary core sampler |
AS 1289.1.3.1 |
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Accreditation No.
353
Site No.
346
Print date
25 Aug 2026