We know a lot less than we'd like to think we do in regards to concrete. For the longest time we knew the ancients made concrete far superior to what we were capable of. We knew it was possible but couldn't find the recipe and secret ingredient for over 2000 years. Now we think we know enough to make the cheap Chinese knockoff version of Roman concrete. Much like your knockoff beats, you feel great about them at first but it doesn't take long for the subpar performance to glare through.

So yeah, we hope to get that breakthrough and start replicating concrete the Romans mixed by hand and built incredible structures with, 2000+ years ago. We will just move ahead without embarrassingly shitty concrete sprucing it up with some new chemical or piece of technology that does very little to improve our brittle see concrete.

The Romans were creating concrete that cured into rock and we're making fancy grid relief cuts not to stop the crack but to encourage it to crack where you want it. Then you pull the plastic off to find a crack starting at one saw cut running through the slab and ending on another cut. Concrete cracks and we don't know how to stop it or replicate concrete being poured before the birth of Christianity, now likely lost forever.