Why Roman concrete is still standing and ours is cracking

Sources6

1. 1.

   Hot mixing: Mechanistic insights into the durability of ancient Roman concreteScience AdvancesSeymour, L. M. et al.6 Jan 2023

   Lime clasts self-heal cracks when water gets in.

   science.orgPaperAt 1:02 in the videoCopy link

2. 2.

   Roman concreteWikipedia

   wikipedia.orgArticleCopy link

3. 3.

   Phillipsite and Al-tobermorite mineral cements produced through low-temperature water-rock reactions in Roman marine concreteAmerican MineralogistJackson, M. D. et al.1 Jul 2017

   pubs.geoscienceworld.orgPaperAt 3:40 in the videoCopy link

4. 4.

   Vitruvius, The Ten Books on Architecture, Book IIProject Gutenberg

   gutenberg.orgBookAt 2:15 in the videoCopy link

5. 5.

   MIT News — Riddle solved: Why was Roman concrete so durable?

   news.mit.eduOtherCopy link

6. 6.

   Portland cement — clinker chemistryPortland Cement Association

   cement.orgOtherAt 6:30 in the videoCopy link