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Joseph Aspdin called the product Portland cement because set mortar made from it resembled “the best Portland stone". Portland stone was the most prestigious building stone in use in England at the time. The patent clearly does not describe the product recognised as Portland cement today.
A fire ring is a construction or device used to contain campfires and prevent them from spreading and turning into wildfires. [citation needed] A fire ring is designed to contain a fire that is built directly upon the ground, such as a campfire. Fire rings have no bottom, and are simply circles made of forged metal, stones, concrete, etc. which ...
William had discovered that a significantly different product, with much wider applications, could be made by modifying his father's cement formulation. By increasing the limestone content in the mixture, and burning it much hotter, a slow-setting, high-strength product suitable for use in concrete could be obtained. This product was ...
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.
An amateur archaeologist discovered a 1,000-year-old ring near the Scottish shore, providing valuable insights into the Pictish kingdom's history. An Amateur Archaeologist Found a 1,000-Year-Old ...
Although different forms of cement already existed (Pozzolanic cement was used by the Romans as early as 100 B.C. and even earlier by the ancient Greek and Chinese civilizations) and were in common usage in Europe from the 1750s, the discovery made by Aspdin used commonly available, cheap materials, making concrete construction an economical ...
The oldest-preserved measuring rod made of copper-alloy bar dates back to 2650 BC and was found at the Sumerian city, Nippur (modern-day Iraq) [17] The post and lintel construction method was popularized by the Egyptians at around 3100 BC to build temples such as the Great Pyramid of Giza (c. 2560).
A concrete foundation had to be poured as the selected site offered no bedrock basis. With the help of two cranes and a forklift, the pyramid was built to reach a height of 11 metres (36 ft), with a 15 metres (49 ft) base. The structure was ultimately dismantled and hauled away. [34]