Ancient Romans had kinda similar technology, although chemically not bacteria based. https://www.nature.com/news/seawater-is-the-secret-to-long-lasting-roman-c

Ancient Romans had kinda similar technology, although chemically not bacteria based. https://www.nature.com/news/seawater-is-the-secret-to-long-lasting-roman-concrete-1.22231 https://www.nature.com/news/seawater-is-the-secret-to-long-l...