REPURPOSING MASK WASTE AS A SUSTAINABLE ADDITIVE FOR ENHANCING ASPHALT MIXTURES

Abstract

Masks play a critical role in protecting individuals from inhaling harmful substances and airborne contaminants. However, the improper disposal of masks poses a significant environmental challenge. Medical masks, primarily composed of polypropylene, consist of three layers: outer and inner waterproof non-woven fabric layers and a middle layer of melt-blown material. This review explores the potential of repurposing discarded polypropylene-based medical masks as an innovative additive in the formulation of asphalt mixtures. Through an extensive analysis of existing literature and the examination of the effects of mask waste on asphalt mixtures, this study sheds light on its potential applications. Notably, Research Gate, Science Direct, and Google Scholar serve as the primary sources of reference for this review. The results highlight the promising benefits of integrating medical mask waste into asphalt mixtures, including improved asphalt performance, recyclability for asphalt modification, and the promotion of environmentally-friendly practices in road construction.