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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 ...
The architecture of Houston includes a wide variety of award-winning and historic examples located in various areas of the city of Houston, Texas. From early in its history to current times, the city inspired innovative and challenging building design and construction, as it quickly grew into an internationally recognized commercial and ...
Starting around 200 BCE, the architects of the Roman Empire were building impressive concrete structures that have stood the test of time — from the soaring dome of the Pantheon to the sturdy ...
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]
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.
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Roman concrete was rarely used on the outside of buildings. The normal technique was to use brick facing material as the formwork for an infill of mortar mixed with an aggregate of broken pieces of stone, brick, potsherds , recycled chunks of concrete, or other building rubble.
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 .