Not totally unrecyclable. You can crush concrete and re-use it as aggregate for other concrete, I think.
Not sure if you can re-kiln it to extract fresh lime, but that seems possible in principle. Might just not be worth it right now, given the availability of limestone deposits.
Recycling is not always better than alternatives, it’s just one option among many. If the economics don’t make sense then there’s no reason to do it.
Not totally unrecyclable. You can crush concrete and re-use it as aggregate for other concrete, I think.
Not sure if you can re-kiln it to extract fresh lime, but that seems possible in principle. Might just not be worth it right now, given the availability of limestone deposits.
Recycling is not always better than alternatives, it’s just one option among many. If the economics don’t make sense then there’s no reason to do it.