<p>The study presents an experimental evaluation of cement-stabilized waste-derived granular matrices, focusing on mechanical performance, microstructural evolution, and environmental compatibility. Unconfined compressive strength, mineralogical and microstructural characteristics, and leaching behavior were systematically investigated across a range of binder contents under controlled curing conditions. The results show a consistent increase in mechanical resistance accompanied by a marked reduction in leachable trace elements with increasing cement incorporation. Microstructural observations confirm the development of a compact matrix with enhanced encapsulation of potentially mobile components. Leaching responses remain within regulatory limits across the tested compositions, indicating effective stabilization. To support interpretation of the experimental findings, multivariate analysis and artificial neural network-based modeling were applied to explore relationships between mix composition and geoenvironmental performance indicators. The integrated experimental and data-driven framework establishes a reproducible basis for assessing the geoenvironmental suitability of stabilized waste-derived granular materials.</p>