Clause 804
Clause 804(less dust than screenings) has a whole range of versatile uses. It is sold lose by the tonne.
Bags
An empty big bag.
Blocks
Regular sized blocks used for most building jobs.
Regular 4" block with a 30 degree offset.
Concrete block that weighs one tonne.
Chips
A much bigger block with a cavity/hole going through the center.
Small empty heavy duty sand bag.
Regular 4" block with a 90 degree offset.