In 2021, global construction projects consumed 30B tonnes of cement to make concrete — with every tonne emitting almost a tonne of CO2. The good news is, technologies already exist to reduce the ...
Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Roman concrete, in ...
Roman concrete perplexed modern engineers over centuries. Their aqueducts, harbours and temples remain to this day. But what did they do to make such enduring material? A new study has at last ...
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