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Engineers Just Made Concrete 30% Stronger. The Secret Ingredient? Coffee.
(www.popularmechanics.com)
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this post was submitted on 25 Aug 2023
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A biochar of spent coffee grounds.
Not coffee grounds.
If you don’t know what biochar is, it’s high carbon material that’s left over after burning organic matter (think:wood) slowly under low-oxygen conditions.
Biochar requires energy and emitting gases.
It seems unfair to say that we’re saving on CO2 and methane from decomposition without also counting the cost of the biochar combustion.
Biochar is still a pretty new concept, but results are promising as a potential overall carbon negative process.
Biochar has been used for 2000+ years, so it is NOT a new concept. Look up Terra Preta. This is biochar enhanced soil found in the amazon.