> so it lasted about as long as you'd expect a random rock subject to only compressive loads in a field to last. Roman Concrete is a bit more special than some

> so it lasted about as long as you'd expect a random rock subject to only compressive loads in a field to last. Roman Concrete is a bit more special than some 'random rock' thanks to the presence of "aluminous tobermorite" which makes the concrete much stronger and more chemically stable https://interestingengineering.com/scientists-discover-why-roman-concrete-gets-stronger-over-time https://interestingengineering.com/scientists-discover-why-r...