Linear Build late game for both the concretes, the ratio are 6.667/s for both. Inputs are only Raw metal and Raw stone and obviously water.
No mod
I tried (and probabily failed) to be more OCD-friendly possible=)

Originally shared on the public FactorioPrints / Factorio School archive (factorioprints.com · factorio.school). Authorship preserved from the public catalog.
Linear Build late game for both the concretes, the ratio are 6.667/s for both. Inputs are only Raw metal and Raw stone and obviously water.
No mod
I tried (and probabily failed) to be more OCD-friendly possible=)