The increasing demand for sustainable construction materials has propelled research into innovative solutions that minimize environmental impact. My current work focuses on exploring the potential of supplementary cementitious materials (SCMs) derived from industrial by-products, particularly mining waste, as a sustainable alternative to conventional cement. This approach aligns with the global imperative to reduce CO₂ emissions associated with cement production, one of the largest industrial contributors to greenhouse gas emissions. By leveraging advanced characterization techniques and a deep understanding of material science, this research aims to transform inert waste into active components that enhance the performance and sustainability of cementitious systems. Through this, the study aspires to contribute to a circular economy model while addressing critical challenges in waste management and carbon footprint reduction in the construction industry.