This research explores the thermo-mechanical performance and lifecycle environmental benefits of high-strength structural concrete incorporating post-consumer vitrified ceramic waste as a partial aggregate replacement. Diverging from microstructural characterization, this study focuses on optimizing thermal behavior and assessing the long-term sustainability impact across various replacement levels for both fine and coarse aggregates. We systematically investigate the concrete’s response to elevated temperatures (e.g., thermal stability, residual strength after fire exposure) and its specific heat capacity, critical parameters for resilient infrastructure. Extensive testing of compressive strength, and flexural strength validates the practical applicability. The findings establish optimal replacement percentages that significantly enhance the concrete’s thermal resilience while concurrently delivering substantial environmental advantages, providing a robust framework for advanced, sustainable concrete mix designs in high-performance applications.

Keywords: Porcelain, Compressive strength, Flexural strength.