Per: MARIA LUIZA LIMA DA SILVA (IFRN), Igor Henrique Lima da Silva (ifrn), Flanelson Maciel monteiro (ifrn), Djalma Valério Ribeiro Neto (ifrn)
Abstract:
This study aims to review the sustainable use of ornamental rock waste, especially in the Seridó region, with the goal of mitigating environmental and economic impacts. To this end, the methodology employed involved a literature review, focusing on articles about the use of these wastes in construction materials. The results show that granite and quartzite waste can be used in mortars, glass production, and ceramic blocks, improving their physical and mechanical properties. Among the main findings, for example, the addition of ornamental rock powder waste in self-leveling mortars increased compressive strength and reduced water absorption. Incorporation into ceramic blocks increased flexural strength, and the production of soda-lime glass with quartzite waste was viable. Thus, it is concluded that the reuse of ornamental rock waste promotes environmental sustainability and offers economic opportunities. For an effective change, support from public policies, partnerships between government, companies, and research institutions, and awareness of the benefits of this practice are essential. Efficient waste management can generate jobs, foster technological innovations, and contribute to a circular economy, reducing the ecological footprint of mining activities.