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The Pantheon in Rome is an example of Roman concrete construction. Caesarea harbour: an example of underwater Roman concrete technology on a large scale. Roman concrete, also called opus caementicium, was used in construction in ancient Rome. Like its modern equivalent, Roman concrete was based on a hydraulic-setting cement added to an aggregate.
Calcium is a binding agent in Roman concrete, which makes it remarkably strong. Figuring out where it came from was the key to solving this architectural mystery.
Because Roman concrete was weak in tension, it did not provide any structural advantage over the use of brick or stone. But, because it could be constructed with unskilled slave labor, it provided a constructional advantage and facilitated the building of large-scale domes. [8] Roman domes were used in baths, villas, palaces, and tombs.
Opus reticulatum (also known as reticulate work) is a facing used for concrete walls in Roman architecture from about the first century BCE to the early first century CE. [1]: 136–9 [notes 1] They were built using small pyramid shaped tuff, a volcanic stone embedded into a concrete core.
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The Roman Pantheon had the largest dome in the world for more than a millennium and is the largest unreinforced solid concrete dome to this day [1]. The Roman architectural revolution, also known as the concrete revolution, [2] is the name sometimes given to the widespread use in Roman architecture of the previously little-used architectural forms of the arch, vault, and dome.
The Second Conference on Lunar Bases and Space Activities of the 21st Century, Houston, TX, 5–7 Apr. 1988. NASA Conference Publication. pp. 489– 492. R. Robinson (January 1989). "Building on the moon". Civil Engineering: 40– 43. H. Kinomere; S. Matsumoto; H. Fujishiro & K. Yatsuyanagi (1990). "A Cost Study of Concrete Production on the Moon".