Ancient Web: A cement society mapped Washington’s forgotten

A 2006 conference handout links D.C. landmarks to natural cement, a material overshadowed by Portland cement. The page connects buildings, a bridge, and Joseph Totten’s 1838 writing to engineering history. A walking list becomes a research guide when each stop points to the material and the person behind it.

Original Washington guide: https://www.rosendalecement.net/naturalcementorg/html/washington__dc.html

Full Switchboard article: https://switchboardtechservices.com/articles/ancient-web-natural-cement-society-mapped-washingtons-forgotten-building-material/

#ancientweb #architecture #engineeringhistory #preservation