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  2. Roman concrete - Wikipedia

    en.wikipedia.org/wiki/Roman_concrete

    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.

  3. Scientists Finally Solved the Mystery of Roman Concrete’s ...

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    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.

  4. Roman cement - Wikipedia

    en.wikipedia.org/wiki/Roman_cement

    Roman cement is a substance developed by James Parker in the 1780s, being patented in 1796. [1] [2] The name is misleading, as it is nothing like any material used by the Romans, but was a "natural cement" made by burning septaria – nodules that are found in certain clay deposits, and that contain both clay minerals and calcium carbonate. The ...

  5. Scientists Finally Solved the Mystery of Roman Concrete’s ...

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  6. Types of concrete - Wikipedia

    en.wikipedia.org/wiki/Types_of_concrete

    Roman concrete was superior to other concrete recipes (for example, those consisting of only sand and lime) [1] used by other cultures. Besides volcanic ash for making regular Roman concrete, brick dust can also be used. Besides regular Roman concrete, the Romans also invented hydraulic concrete, which they made from volcanic ash and clay. [2]

  7. 2,000 years later, ancient Roman concrete still stands — and ...

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    Modern concrete crumbles in decades, but the concrete Colosseum still stands — a mystery that puzzled scientists. 2,000 years later, ancient Roman concrete still stands — and experts finally ...

  8. Cement - Wikipedia

    en.wikipedia.org/wiki/Cement

    Nobody knows who first discovered that a combination of hydrated non-hydraulic lime and a pozzolan produces a hydraulic mixture (see also: Pozzolanic reaction), but such concrete was used by the Greeks, specifically the Ancient Macedonians, [11] [12] and three centuries later on a large scale by Roman engineers. [13] [14] [15]

  9. Discovery at ancient Roman factory reveals it was ... - AOL

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