Crusher Dust Recycled
Recycled Crusher Dust is a by-product of the concrete crushing process. It is used for under-slab fill and bases and is a slightly cheaper alternative to Blue Crusher Dust.
It is not quite as easy to screed as Blue Crusher Dust - consider using Blue Crusher Dust instead (made from Blue Metal rather than Concrete) if workability is important for your project. For instance, if preparing a base for artificial turf.
However, if workability and compactibility is not a concern, you can definitely save a few dollars by using Recycled Crusher Dust.