Concrete - Loved, Hated and Used
Many bridges around the world which use reinforced concrete are deteriorating faster than was expected https://t.co/czehUCEgHH— The Economist (@TheEconomist) August 23, 2018
Here is the reason why Ancient Roman concrete was so strong pic.twitter.com/nUGdZ6yxIa— Business Insider (@businessinsider) August 20, 2018
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