Did you know coffee grounds have more uses than simply your morning cup of java.
A mix of used coffee grounds and waste from iron production is as strong as cement, so naturally it can also be used in roadbuilding materials.
Engineers from China, Thailand and Australia have developed an environmentally friendly recipe for road construction using coffee grounds collected from cafes and waste from iron production.
This new method would significantly reduce landfill demand and carbon footprint, says a researcher from Swinburne University Arul Arulrajah.
Alot of coffeegrounds would be needed to build even 5km of roads – approximately all the coffee grounds in Melbourne over a year.
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