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