Here’s a good explanation on the differences modern concrete and Roman concrete. It turns out they are pretty different materials. https://www.sciencealert.co

Here’s a good explanation on the differences modern concrete and Roman concrete. It turns out they are pretty different materials. https://www.sciencealert.com/why-2-000-year-old-roman-concrete-is-so-much-better-than-what-we-produce-today https://www.sciencealert.com/why-2-000-year-old-roman-concre...