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Concrete is the most consumed man-made material on Earth. Each year, about three tonnes of concrete are used per person. While the environmental impact of man-made materials like plastics has been widely publicised for decades, the dramatic effects of concrete on the environment have been far less talked about.
Concrete is made up of water, cement, and a filler such as sand. The cement industry alone is responsible for about 8 per cent of the world’s carbon dioxide emissions, and the production of concrete consumes 10 per cent of the world’s industrial water. Furthermore, the amount of cement produced every two years is more than the amount of plastic produced over the past 60 years.
2021 0421 From excavation waste to ultra-high performance concrete 1
From left: Dr Du Hongjian, Assoc Prof Pang Sze Dai, and Mr Anjaneya Dixit from NUS Civil and Environmental Engineering with the raw materials, processed clays, and the finished concrete product.
Concrete is the most consumed man-made material on Earth. Each year, about three tonnes of concrete are used per person. While the environmental impact of man-made materials like plastics has been widely publicised for decades, the dramatic effects of concrete on the environment have been far less talked about.
Concrete is made up of water, cement, and a filler such as sand. The cement industry alone is responsible for about 8 per cent of the world’s carbon dioxide emissions, and the production of concrete consumes 10 per cent of the world’s industrial water. Furthermore, the amount of cement produced every two years is more than the amount of plastic produced over the past 60 years.
NUS team uses local waste clay to make more durable concrete that is up to 50% greener channelnewsasia.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from channelnewsasia.com Daily Mail and Mail on Sunday newspapers.