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. [...]
Published in the Journal of Cleaner Production, the study by RMIT engineers is the first to prove that waste coffee grounds can be used to improve concrete.
— Science Daily
The study found that three different coffee ground samples each increased their concrete pour’s compressive strengths by up to 30% once their organic compounds were broken down through pyrolysis. The discovery could go a long way in combatting issues such as food waste and the carbon impact of concrete’s still rampant use as a construction material worldwide. RMIT will follow up with additional mechanical and durability tests on the same samples.
"Our research is in the early stages, but these exciting findings offer an innovative way to greatly reduce the amount of organic waste that goes to landfill," the paper’s co-lead author, Dr. Shannon Kilmartin-Lynch, explained. Discarded PPE may also have a stirring second life in construction, according to a separate study the same team of researchers published last year.
1 Comment
That would be interesting and if the studies show positive results, I'll consider its use but need data to support the use. I wouldn't use it with matters that involve HSW and long-term liability until there are sufficient studies and data including the pros and cons.
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