In 2022, Washington researchers turned used face masks into concrete fibers; one test found 47% higher tensile strength after 28 days

A team at Washington State University has made a groundbreaking discovery regarding recycled mask fibers and their application in cement. By treating polypropylene fibers with graphene oxide and incorporating them into cement paste, the researchers observed a remarkable 47% boost in tensile strength after 28 days. Although compressive strength showed a minor decline, this innovative approach opens doors for recycling disposable masks into construction materials.
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