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A group of engineers at RMIT have found a way to enhance the strength of concrete, utilising roasted used-coffee grounds in a bid to prolong the material’s lifespan and reduce waste, while preserving sand.
Coffee offers performance boost for concrete - Food & Beverage Industry News foodmag.com.au - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from foodmag.com.au Daily Mail and Mail on Sunday newspapers.
Engineers in Australia have found a way of making stronger concrete with roasted used-coffee grounds, to give the drink-additive a “double shot” at life and reduce 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.