Australian researchers heated used coffee grounds to 350°C and turned them into material that made concrete 29% stronger, replacing part of the sand |
After a cup of coffee is brewed, the grounds left behind are often discarded as waste. But researchers have found a way to turn them into a useful material for concrete. A 2023 study examined whether spent coffee grounds (SCG) could replace part of the sand used in concrete after being converted into biochar through…