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concrete [2020/12/16 09:05] rapidplatypus [Roman concrete] |
concrete [2021/08/05 03:36] (current) aga |
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===== Roman concrete ===== | ===== Roman concrete ===== | ||
- | Modern concrete can break up within 50 years. However, Roman concrete structures last for thousands of years because they used volcanic ash, which slowly transforms into aluminum tobermorite.[(https:// | + | Modern concrete can break up within 50 years. However, Roman concrete structures last for thousands of years because they used volcanic ash, which slowly transforms into aluminum tobermorite. [([[https:// |
===== Highest building ===== | ===== Highest building ===== | ||
- | The World's tallest building, Burj Khalifa, is made of 330,000 m³ concrete reinforced with 55,000 tonnes of steel. | + | The world's tallest building, |
===== Heaviest Concrete Structure ===== | ===== Heaviest Concrete Structure ===== | ||
- | Three Gorges Dam in Hubei, China, is the biggest | + | Three Gorges Dam in Hubei, China, is the largest |
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