Since the pandemic, billions of face masks have been manufactured and discarded, perpetuating a severe environmental risk to the ecosystem. This study attempted to divert such waste into a practical application in the engineering industry. Despite the good environmental intentions of incorporating this material into concrete, concrete admixed with 0.125 wt% of facemask deteriorated the concrete’s compressive strength and durability (by 27% at 28 days and 18% at 38 days, respectively). To reduce the negative effect of the facemask, Graphene Oxide (GO, at 1.25 × 10−4 wt%) was added, which significantly neutralized these effects to the compressive strength and durability (by 17% at 28 days and 8% at 38 days, respectively). Adding a facemask alone to the concrete significantly improved its split tensile strength (by 36% at 28 days). The GO-treated facemask further enhanced the concrete’s split tensile strength (by 81% at 28 days). Likewise, regression and correlation analysis were also carried out to reveal the optimum mix design and best mix types among the three.

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Empirical Investigation on the Applications of Graphene Oxide in Enhancing the Concrete’s Durability and Mechanical Properties Mixed with Polypropylene Fiber

  • Kenneth C. Gemora,
  • Anjhelo Jan Mangrobang,
  • Jan Matthew B. Javate,
  • Cris Edward F. Monjardin

摘要

Since the pandemic, billions of face masks have been manufactured and discarded, perpetuating a severe environmental risk to the ecosystem. This study attempted to divert such waste into a practical application in the engineering industry. Despite the good environmental intentions of incorporating this material into concrete, concrete admixed with 0.125 wt% of facemask deteriorated the concrete’s compressive strength and durability (by 27% at 28 days and 18% at 38 days, respectively). To reduce the negative effect of the facemask, Graphene Oxide (GO, at 1.25 × 10−4 wt%) was added, which significantly neutralized these effects to the compressive strength and durability (by 17% at 28 days and 8% at 38 days, respectively). Adding a facemask alone to the concrete significantly improved its split tensile strength (by 36% at 28 days). The GO-treated facemask further enhanced the concrete’s split tensile strength (by 81% at 28 days). Likewise, regression and correlation analysis were also carried out to reveal the optimum mix design and best mix types among the three.