they get stronger over time, modern capital requirements probably would not consider funding buildings that are weakest when new and only operationally stable a

they get stronger over time, modern capital requirements probably would not consider funding buildings that are weakest when new and only operationally stable after couple of hundred years... https://www.science.org/content/article/why-modern-mortar-crumbles-roman-concrete-lasts-millennia https://www.science.org/content/article/why-modern-mortar-cr...