When.com Web Search

Search results

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

    en.wikipedia.org/wiki/Roman_concrete

    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. Many buildings and structures still standing today, such as bridges, reservoirs and aqueducts, were built with this material, which attests to both its ...

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

    www.aol.com/2-000-years-later-ancient-222152484.html

    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 ...

  6. Concrete - Wikipedia

    en.wikipedia.org/wiki/Concrete

    In contrast to modern concrete structures, the concrete used in Roman buildings was usually covered with brick or stone. The Romans used concrete extensively from 300 BC to AD 476. [18] During the Roman Empire, Roman concrete (or opus caementicium) was made from quicklime, pozzolana and an aggregate of pumice. [19]

  7. 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 ...

  8. Types of concrete - Wikipedia

    en.wikipedia.org/wiki/Types_of_concrete

    In limecrete, lime concrete or roman concrete the cement is replaced by lime. [16] One successful formula was developed in the mid-1800s by Dr. John E. Park . [ 17 ] Lime has been used since Roman times either as mass foundation concretes or as lightweight concretes using a variety of aggregates combined with a wide range of pozzolans (fired ...

  9. Ancient Roman engineering - Wikipedia

    en.wikipedia.org/wiki/Ancient_Roman_engineering

    Roman bridges were among the first large and lasting bridges ever built. They were built with stone, employing the arch as basic structure. Most utilized concrete as well. Built in 142 BC, the Pons Aemilius, later named Ponte Rotto (broken bridge) is the oldest Roman stone bridge in Rome, Italy.