April 2022:
It is estimated that at least 10% of all concrete structures in Europe must be refurbished or replaced before 2030 to prevent unsafe situations such as the Morandi Bridge collapse in Genoa, Italy. In that case, even though cracks and corrosion were seen in the steel-reinforced concrete cable stays beginning only 20 years after it was built, some crucial refurbishment was put off. “A bridge is like a car,” says Luigi Gambarotta, professor of structural mechanics at the University of Genoa, in a 2019 article by Guglielmo Mattioli published in The Guardian. “You can’t overload it, and to keep it working you need to change the broken parts.”
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