A closer look at “Coffee Grounds Could Make Concrete 30% Stronger, Study Finds”, exactly as the source publishes it. The world produces about 60 million tons of spent coffee grounds each year, most of which ends up in landfills, where it decomposes and releases methane, a potent greenhouse gas. Researchers at RMIT University in Melbourne, Australia, have found a way to turn this waste into a valuable resource. By processing coffee grounds into biochar through pyrolysis and adding it to concrete, they increased the compressive strength of the material by nearly 30 percent.
The process involves heating the grounds to 350 degrees Celsius in the absence of oxygen, which transforms them into a porous, carbon-rich material that bonds well with cement. This innovation could reduce the need for natural sand, a finite resource that is increasingly scarce, and lower the carbon footprint of the construction industry. This listing links straight to the original page, where the content is available in full.