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Reminds me of the Roman cement that lasts for centuries as well. The Dutch are interesting as they also have a strong agricultural bent.
by peter_retief 5y ago
Reminds me of the Roman cement that lasts for centuries as well.
The Dutch are interesting as they also have a strong agricultural bent.
- wolverine876 5y agoI was just talking about that with someone. What makes it hold up? And are we talking about the material used to construct ancient structures like the Colosseum and aqueducts?
- klyrs 5y agoSomething about crystal formation in the volcanic ash that the cement is made from, reacting with the volcanic rock the aggregate is made from. I'm not going to do it justice by getting any more specific, so here's an article for layfolk, and the associated journal article. https://www.sciencealert.com/why-2-000-year-old-roman-concrete-is-so-much-better-than-what-we-produce-today https://www.sciencealert.com/why-2-000-year-old-roman-concre... https://pubs.geoscienceworld.org/msa/ammin/article/102/7/1435/353606/Phillipsite-and-Al-tobermorite-mineral-cements https://pubs.geoscienceworld.org/msa/ammin/article/102/7/143...