When.com Web Search

Search results

  1. Results From The WOW.Com Content Network
  2. Roman concrete - Wikipedia

    en.wikipedia.org/wiki/Roman_concrete

    As seawater percolated within the tiny cracks in the Roman concrete, it reacted with phillipsite naturally found in the volcanic rock and created aluminous tobermorite crystals. The result is a candidate for "the most durable building material in human history". In contrast, modern concrete exposed to saltwater deteriorates within decades. [17 ...

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

    www.aol.com/scientists-finally-solved-mystery...

    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. Opus signinum - Wikipedia

    en.wikipedia.org/wiki/Opus_signinum

    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] Its main advantage over opus caementicium was that it is waterproof, the reason for its widespread use in Roman baths , aqueducts, cisterns and any ...

  5. How are ancient Roman and Mayan buildings still standing ...

    www.aol.com/news/ancient-roman-mayan-buildings...

    Ancient builders across the world created structures that are still standing today, thousands of years later — from Roman engineers who poured thick concrete sea barriers, to Maya masons who ...

  6. Talk:Types of concrete - Wikipedia

    en.wikipedia.org/wiki/Talk:Types_of_concrete

    Roman concrete was superior from other concrete recipes (for example those consisting of only sand and lime. [1] used used by other nations. Besides using vulcanic ash for making regular Roman concrete, brick dust can also be used. Besides regular Roman concrete, the Romans also invented waterproof concrete, which they made from vulcanic ash ...

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

    www.aol.com/news/2-000-years-later-ancient...

    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. 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.

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

    www.aol.com/lifestyle/scientists-finally-solved...

    For premium support please call: 800-290-4726 more ways to reach us