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Scientists Solve 2,000-Year-Old Mystery of Incredibly Strong Roman Concrete and It Could Help Battle Climate Change

Modern concrete, including its vital ingredient Portland cement, is a major source of greenhouse gas emissions. But it could all change with a new discovery.

Our obsession with concrete accounts for around 5 percent of human-induced emissions. A third of the damage is done by the heat ne
monodes.com/predaelli/2022/04/
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@paoloredaelli You know that concrete is an excellent building material if used correctly. I think it gets an unfair shake when it comes to environmental impact. I’m not sure how this other process works and if it could scale and work with our pumps and such. “Roman” concrete has a bit of survivor’s bias since all of the bad mixes are long gone. We have the technology to build structures that last, but we don’t. Many buildings are demolished before they are even 30 years old.

@daniel Well written!
Of course I know #concrete is an excellent and **eco-friendly** building material: I've been making it in the last 20 years 😜
The survivor's bias also holds for roads and it is highly correlated with costs. The Romans and Us are both able to build "æterna manufacta", given enough money

@daniel yes #concrete can be eco-friendly when it is made to last centuries instead of years. And we know how to do it.

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