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The article did bring up some ways modern concrete is superior in the shorter term: "Among the biggest obstacles to wider adoption of the Roman recipe are its
by Linosaurus 5y ago
The article did bring up some ways modern concrete is superior in the shorter term:
"Among the biggest obstacles to wider adoption of the Roman recipe are its long curing time – it can take up to six months to reach full strength, compared to standard concrete's' 28 days – and lower strength (Perucchio said it's approximately 10 times weaker than modern concrete),"
- anarticle 5y agoSome of this is likely due to high lime content, which is self healing. Generally lower strength, longer cure time, but does not get attacked as hard by water due to remineralization. It is similar to how limestone naturally forms (think stalactites).
- jaclaz 5y agoJFYI, this is true also of modern Pozzolanic cement (almost unused today), but in my experience (anecdata) it is also stronger: https://news.ycombinator.com/item?id=29377799 https://news.ycombinator.com/item?id=29377799