Roman concrete was much different than concrete today. Ours is based on Portland cement, developed in the early 1800's
Roman concrete is much different, https://news.mit.edu/2023/roman-conc...ime-casts-0106
Roman concrete was much different than concrete today. Ours is based on Portland cement, developed in the early 1800's
Roman concrete is much different, https://news.mit.edu/2023/roman-conc...ime-casts-0106
Frank S (Jan 1, 2026)
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