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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.
Opus signinum ('cocciopesto' in modern Italian) is a building material used in ancient Rome. It is a form of Roman concrete ( opus caementicium ), the main difference being the addition of small pieces of broken pot, including amphorae , tiles or brick, instead of other aggregates. [ 1 ]
Opus incertum on the Temple of Jupiter Anxur in Terracina, Italy. Opus incertum ("irregular work") was an ancient Roman construction technique, using irregularly shaped and randomly placed uncut stones or fist-sized tuff blocks inserted in a core of opus caementicium.
The word "cement" can be traced back to the Ancient Roman term opus caementicium, used to describe masonry resembling modern concrete that was made from crushed rock with burnt lime as binder. The volcanic ash and pulverized brick supplements that were added to the burnt lime, to obtain a hydraulic binder , were later referred to as cementum ...
The wall is of a type common to all Roman construction, consisting of an opus caementicium concrete core and mortar between two facing walls, [AA 6] adorned here with refined patterns between horizontal bands of flat bricks. The enclosure features a succession of brick bands and rubble of various colors, sourced from both reused materials and ...
The Romans made extensive use of rubble masonry, calling it opus caementicium, because caementicium was the name given to the filling between the two revetments. The technique continued to be used over the centuries, as evidenced by the constructions of defensive walls and large works during medieval times.