Hadrian’s Wall
Although Rome has built numerous important defensive walls, Hadrian’s Wall was the most famous defensive barrier in the Roman Empire, and essential in protection of the northwestern section of the empire. It was a, “frontier developed to a higher level of defensive efficiency than any other in the history of Rome” (Divine, pp. 5). However, the Wall of Hadrian wasn’t only the most important wall in the Roman Empire. Because of the wall 's important role in early Roman history, its distinctly Roman construction, and its forts and milestone castles, Hadrian 's Wall was the definitive Roman structure in Great Britain.
History
The Emperor of Rome at the time was Hadrian, who lived from AD 76-138. Hadrian was the first
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Instead, they used a considerably simpler method.
The main technique the Romans used in constructing Hadrian’s Wall was opus incertum. Opus incertum used irregularly shaped uncut stones and places them randomly in their special cement, opus caementicium. The Roman concrete was exceptionally strong and durable, and can be seen in many Roman architectural structures throughout their empire.
“Roman concrete (opus caementicium), like modern concrete, is an artificial building material composed of an aggregate, a binding agent, and water. Aggregate is essentially a filler, such as gravel, chunks of stone and rubble, broken bricks, etc. Binding agent is a substance which is mixed with the aggregate wet (water added) and solidifies when it dries, or "sets." Many materials, even mud, can be a binding agent, and used to make, what we generally call, mortar. Historically lime or gypsum, mixed with rubble stones, have been used as binding agents in making a strong mortar” (Roman Concrete).
Nevertheless, this was a standard concrete technique in history, the Romans decided to strengthen their concrete mixture with another substance.
In order to create their special concrete, the Romans introduced into the principal concrete mixture a fundamental component; pozzolona, a special volcanic dust found in central Italy. “Pozzolona created an exceptionally strong bond with the aggregate. In most parts of the Roman world,
After perfecting the formula for this concrete, they had achieved a cement that could help construct durable buildings. By laying the concrete between bricks and then covering the facade of the building with marble slabs, the Romans made well constructed buildings that gave the appearance of pure marble (Connolly).
When reading of the concrete that the ancient Romans used, and learning of their unique mixture of volcanic ash and slaked lime (“pozzolana”) I find it most interesting that this concrete still proves to be standing in some places today! It is said to be less sturdy than what we use here in America (Andrews, 2012) but no doubt it gave modern civilization the ingenuity to create what we use today.
Hadrian’s Wall is a Roman defensive barrier that guarded the northwestern frontier of the province
This paper offers a discussion about how ancient Rome developed and utilized arches and concrete to further expand their civilization. The importance of these technologies will be covered, along with the benefits to Rome. Concrete was a Roman invention which was composed of materials that were plentiful. One of the base materials used in Roman concrete was pozzolana, a volcanic soil.
These materials were used to build specific structures and technology. First of all, whenever they had to have water travel across valleys or other open landscapes, the Romans built bridges made of arches. These arches saved materials and money, as it took less to build arches than to build a solid wall. Also, arches were much more stable than a wall and were easily repairable. It was easy for pedestrians and vehicles to pass through the arches, too. However, when
Hadrian is also known for the construction of buildings in other countries as well, such as the Hadrian’s Gate in southern Turkey, the Hadrian’s Theaters in Carthage and Hadrian’s Wall. The wall was primarily built for the Roman citizens living in southern Britain (now today known as Scotland) were plagued by several attacks, so Hadrian decided to build a wall in order to protect the citizens. According to historical information, these
Concrete was a recent invention which the Romans were still learning how to use. Not knowing exactly how strong the substance was the Romans
famous creations was the Hadrian Wall. This was the defense barrier he built on the border
The accumulated debris contributed fresh evidence on the earlier history of the present North Wall line. With the help of Robert Hamilton’s detailed excavation report, one is able to use the findings to reconstruct the sequence of the wall’s construction, reconstruct the sequence of the accumulation of debris [pottery and coins] at its base, and to put these reconstructions together to tell the story of the wall.
Concrete is the reason why many Roman structures have survived until today. Examples of buildings that are still around due to their concrete construction include the Pantheon, Baths of Caracalla and the Basilica of Constantine (E,
If you go to Rome today you can see many ancient ruins that are still there because Romans used a ‘secret’ ingredient to stand their buildings. An example would be the Colosseum. In Rome, you can see that most of the Colosseum are still there, that’s because the Romans used cement when they made it. This proves that cement is strong and should be used in all
In addition to the works of Trajan, Hadrian’s Wall can also superficially symbolize the happiness and prosperity of the Roman Empire as asserted by Gibbons. The emperor Hadrian built Hadrian’s Wall after returning from his visit to Britain. The construction of the wall was an attempt by Hadrian to set up permanent borders for the Roman Empire and show the strength that the Roman Empire had during the reign of Hadrian by doing so. The construction of the wall, while showing strength and wealth, also can symbolize the empires struggle with its borders, and even more so, citizenship. The wall itself symbolized the Roman Empire’s tensions with the peoples surrounding the empire. The wall showed how the empire needed a structural device to maintain some level of peace within the empire.
The Romans didn’t invent concrete however, it was how they mixed and what material they used in their concrete, that made it special. They used a material called pozzolana as the basis for the mixture. This chocolate colored material was essentially the ashes originating from volcanoes found near Greek settlements (Kamm, n.d.). With this new
When the Roman Emperor Hadrian visited Britain in 122 AD he recognised the difficulties in establishing control in Caledonia and saw that it would be impossible to introduce the Picts to the Roman way of life. The Emperor therefore ordered the construction of a great defensive wall which would mark the northern limits of his empire and consolidate the hold on those parts of Britain already subdued. Hadrian's empire would not include Caledonia. The Romans also had to defend Hadrian's Wall, against attacks by Picts and other tribes these people lived in northern Britain, outside the Roman part. Soldiers sent to defend the wall lived in forts and camps.
Many of Rome’s paramount architectural accomplishments can be found in, and around Italy. These sites include the Pantheon, the Arch of Titus, the Mausoleum of Hadrian, the Roman Forum, and Ancient Roman Aqueducts, along with the Colosseum. Many of these architectural feats have been replicated throughout Roman territory. Their domain stretched all over Europe, Northern Africa, and even into the Middle East. Today we are still able to enjoy much of Rome’s artistry, which can be linked to the how their engineers manufactured these monuments. Roman architects created structurally sound buildings by making use of the vault, and the arch. These engineers also created concrete, a binding agent holding the structures together. All of these forms were later replicated throughout the empire (Lake Oswego School District, 2012:1).