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RAZOR: Can water-resistant concrete help to keep our buildings safe?
CGTN

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05:23

With extensive exposure to air, rain and pollution, concrete structures tend to get dirty, discoloured and fractured. But scientists in China have created the cement of the future to help keep buildings safe. Tech it Out's Yang Zhao talks to Xu Xin, from the University of Science and Technology of China, about the innovation that is water-resistant concrete. 

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