Prestressed Concrete Bridges Become 100 Years Old: Steel Ropes Inside Can No Longer Rust in the Future
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The collapse of the 53-year-old Carola Bridge in Dresden on 11 September 2024 is the most spectacular German example of the dangers posed by old prestressed concrete bridges. The rusting of the steel ropes inside the bridges, which give the concrete strength, is a worldwide problem. Therefore, such bridges are often replaced after 30 years, but at the latest after 60 years. Allium Engineering, a young US company in Billerica in the U.S. state of…
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