Can we talk about aggregate?
Sure we can - but really need to get the punctuation and terminology (rock/gravel/stone/cinders/crushed concrete, etc.) or else the aficionados here will have to concentrate on corrections.
I once grabbed and used some broken up road material - does that count for this thread - in the aggregate?
well asphalt and concrete and stocco, and some brick are products made from gravels and or aggregate,, so maybe call it solid gravel,, nature also makes what we call hardpan which is gravels and some other mineral soils compacted so hard they need to be drilled an blasted
