Canberra [Australia], August 22 (ANI): Engineers in Australia have discovered a way to make stronger concrete using roasted leftover coffee grounds, giving the drink additive a "second chance" and reducing waste going to landfills.

Lead author Dr Rajeev Roychand from RMIT University said the team developed a technique to make concrete 30% stronger by turning waste coffee grounds into biochar, using a low-energy process without oxygen at 350 degrees Celsius.

“The disposal of organic waste poses an environmental challenge as it emits large amounts of greenhouse gases including methane and carbon dioxide, which contribute to climate change,” said Roychand, from the School of Engineering.

Australia generates 75 million kilograms of ground coffee waste every year – most of it goes to landfil

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