Aggregate Testing

Aggregate & Soil testing is an essential part of the construction industry and Hallett Laboratory delivers an extensive set of testing services for our clients. Our technicians have an extensive skill set and provide assurance that the materials meet the desired specifications.

PROCEDURE

TECHNIQUE

AS1141.3.1

Sampling – Aggregates

AS1141.3.2

Sampling – Rock spalls, boulders and drill core

AS1141.4

Bulk density of aggregates

AS1141.5

Particle density and water absorption of fine aggregate

AS1141.6.1

Particle density and water absorption of coarse aggregate –
Weighing-inwater method

AS1141.11.1

Particle size distribution – Sieving method

AS1141.12

Materials finer than 75 µm in aggregates (by washing)

AS1141.14

Particle shape, by proportional caliper

AS1141.15

Flakiness index

AS1141.16

Angularity number

AS1141.20.1

Average least dimension –
Direct measurement (nominal size 10mm and greater)

AS1141.20.2

Average least dimension –
Direct measurement (nominal size 5mm and 7mm)

AS1141.20.3

Average least dimension – Calculation (nomograph)

AS1141.21

Aggregate crushing value

AS1141.22

Wet / dry strength variation

AS1141.23

Los Angles value

AS1141.24

Sodium Sulfate Soundness

AS1141.30.1

Coarse Aggregate Quality – Visual Comparison

AS1141.32

Weak particles (including clay lumps, soft and friable particles)
in coarse aggregate

AS1141.33

Clay and fine silt (settling method)

AS1141.34

Organic impurities other than sugar

Soil Testing

PROCEDURE

TECHNIQUE

AS1289.1.1

Sampling and preparation of Soils –
Preparation of disturbed soil samples for testing

AS1289.1.2.1

Sampling and preparation of Soils –
Disturbed samples – Standard method

AS1289.2.1.1

Soil moisture content tests –
Determination of the moisture content of a soil –
Oven drying method (standard method)

AS1289.3.1.1

Soil classification tests -Determination of the liquid limit of a soil –
Four point Casagrande method

AS1289.3.1.2

Soil classification tests -Determination of the liquid limit of a soil –
One point Casagrande method (subsidiary method)

AS1289.3.2.1

Soil classification tests – Determination of the plastic limit of a soil –
Standard method

AS1289.3.3.1

Soil classification tests – Calculation of the plasticity index of a soil

AS1289.3.4.1

Soil classification tests – Determination of the linear shrinkage of a soil –
Standard method

AS1289.3.6.1

Soil classification tests – Determination of the particle size distribution
of a soil – Standard method of analysis by sieving

AS1289.4.3.1

Soil chemical tests – Determination of the pH value of a soil –
Electrometric method

AS1289.5.1.1

Soil compaction and density tests – Determination of the dry density /
moisture content relation of a soil using standard compactive effort

AS1289.5.2.1

Soil compaction and density tests – Determination of the dry density /
moisture content relation of a soil using modified compactive effort

AS1289.5.4.2

Soil compaction and density tests – Compaction control test –
Assignment of maximum dry density ratio and optimum
moisture content values

TP134

Particle Size Distribution – Standard Method of Analysis be Sieving

TP166

Assignment of Maximum Dry Density and Optimum Moisture
Content Values

TP226

Sampling of Soil, Aggregates and Rocks

TP240

Elongation Index

TP241

Flakiness Index

TP244

Percentage Flat Particles