Concrete made from used masks and gloves was 20% stronger than normal.

In three RMIT University of Melbourne studies, the team added shredded gowns, rubber gloves and face masks to concrete at varying concentrations ranging from 0.1% to 0.25%. Rubber gloves were found to increase the compressive strength of concrete by 22%, while face masks improved it by 17%. At the same time, shredded gowns increase compressive strength by 15%, elasticity by 12%, and bending resistance by 21%.