In what ways is Portland cement better than Roman cement?

jaclaz · on April 12, 2023

It is not necessarily "better", it is "different":

https://news.ycombinator.com/item?id=31834833

https://news.ycombinator.com/item?id=29377799

Currently the trend in cement is to add pozzolanic components to portland based cement in larger quantities to combine the best of the two (fast setting and high resistance of Portland with resistance to water and cracks of Pozzolanic).

littlestymaar · on April 12, 2023

It has much better mechanical properties.