• Avfall och återvinning
  • Byggnader och infrastruktur
  • Oceanien

Super-strong coffee-reinforced concrete gets real-world test

In a world first, the researchers who used waste coffee grounds to make concrete that’s 30% stronger are putting their innovative material to the test by laying sidewalks made of the stuff to see how it fares when it's subjected to foot traffic.

Last year, researchers from RMIT University in Melbourne, Australia, found that replacing up to 15% of the sand ordinarily used in concrete with waste coffee grounds made it 30% stronger. It's a case of killing two birds with one coffee bean: the production method not only reduces reliance on sand, a non-renewable resource, but also reduces the amount of organic waste sent to landfills, thereby reducing its contribution to greenhouse gas emissions.

Read more at newatlas.com External link.

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