Why was Roman concrete so durable?
Chemistry might be important, but we don't necessarily need that deep of an analysis.Romans didn't mind over-engineering with massive, inefficient structures. They didn't worry about complex/thin shapes, or any tensile elements. No rebar, no "piping" cement, etc. And they could put up with extremely long cure times.The end result is very, very dense concrete.We could probably recreate the durability of their concrete if we were actually willing to put up with the compromises they represent.https://practical.engineering/blog/2019/3/9/was-roman-concre...