alt Hacker NewsLook up Roman concrete. There are 2000 year old bridges and aqueducts still in use.
We only recently figured out how to reproduce Roman concrete.
We’d have more but a lot were blown up during WWII.
Look up Roman concrete. There are 2000 year old bridges and aqueducts still in use.
We only recently figured out how to reproduce Roman concrete.
We’d have more but a lot were blown up during WWII.
There is nothing special about roman concrete compared to moderns concrete. Modern concrete is much better
The difference is that they didn't have rebar. And so they built gravity stable structures. Heavy and costly as fuck.
A modern steel and concrete structure is much lighter and much cheaper to produce.
It does mean a nodern structure doesn't last as long but also the roman stuff we see is what survived the test of time, not what crumbled.