It's common practice here to take demolished concrete from a structure and pavement and use it as structural fill for new development. Sometimes on the same property. Some agencies will not allow contractors to haul it off as it has salvage value.
Concrete rubble is also salvageable on the job site. Recycling would require transporting to a mill, crushing, separating, transporting to a furnace, and then the process described in the article starts.
Concrete rubble is also salvageable on the job site. Recycling would require transporting to a mill, crushing, separating, transporting to a furnace, and then the process described in the article starts.