This reminds me of how for many years, we didn’t know how Roman Concrete was so strong. The Romans knew it was super strong, and part of why buildings like the Pantheon have held up so well is that Roman concrete incorporated what we now refer to as Pozzolans - alumina or silica containing binders that, when used as an additive to concrete, makes the concrete stronger over time due to reactions with water. Original Roman concrete used volcanic ash from near the city of Pozzuoli, hence the name.
Oh that’s very cool.
This reminds me of how for many years, we didn’t know how Roman Concrete was so strong. The Romans knew it was super strong, and part of why buildings like the Pantheon have held up so well is that Roman concrete incorporated what we now refer to as Pozzolans - alumina or silica containing binders that, when used as an additive to concrete, makes the concrete stronger over time due to reactions with water. Original Roman concrete used volcanic ash from near the city of Pozzuoli, hence the name.