Optimization of COVID-19 face mask waste fibers and silica fume as a balanced mechanical ameliorator of fat clay using response surface methodology.

A steep slope was observed with an increasing trend for both SF and FM, which means that the q u increased with an increase in SF and FM; however, a more steep line and a larger increase in the q u was observed with an increase in the SF, which means that SF is a more sensitive parameter for the q u of ABA-treated soil.

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