General
Compaction testing is not required for isolated patches less than 2 m2 in size. Patches are usually associated with the installation of service connections or carrying out repair work. Patches are typically characterised by width to length ratios less than two.
Trench backfill to subgrade level
Maximum dry density: Standard compactive effort to AS 1289.5.1.1.
Field dry density: To AS 1289.5.3.1, AS 1289.5.3.5 or AS 1289.5.8.1.
Density index for cohesionless soils: Determine in accordance with AS 1289.5.6.1.
Test frequency: 1 field density test per 2 layers for every 40 linear metres of trench or for the part thereof.
Unbound pavement
Maximum dry density: Modified compactive effort in accordance with AS 1289.5.2.1.
Field dry density: To AS 1289.5.3.1, AS 1289.5.3.5 or AS 1289.5.8.1.
Test frequency: 1 in situ density test per single compacted layer of work for every 40 linear metres of trench or for the part thereof.
Asphalt
Test frequency: 1 density test per single compacted layer of work for every 40 linear metres of trench or for the part thereof.
Concrete
Concrete supply: Supply concrete that is subject to production assessment by the supplier in accordance with AS 1379.
Slump: Test at least one sample from each batch before placing concrete from that batch in the work. Take the samples at the point of discharge on site.
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