TheSoil-cement bricks reuse of industrial residuesIndustrial residues in construction materials is a key strategy for promoting sustainabilitySustainability and reducing natural resource consumption. This study evaluated the physical, mechanical, and microstructural performance of soil–cementCement bricks produced with iron ore tailings, red ceramicCeramical waste, and crushed sand. The soil was previously corrected with crushed sand to optimize particleParticle size distribution. Bricks were produced with 10% cementCement by mass, varying the proportion of residues, and cured for 7 and 28 days. Physical properties (water absorption), mechanical performance (compressive strength), durability (wetting–drying cycles), and microstructural characteristics (X-ray diffraction) were assessed. Results indicate that the incorporation of iron ore tailings and ceramicCeramical waste improves matrix densification, reduces water absorption, and enhances compressive strength. Small additions of residues minimized mass loss during durability tests. Microstructural analysis revealed that quartz, feldspars, kaolinite, hematite, mullite, and cristobalite interact with cementCement hydration products, contributing to performance gains through filler effect, structural stiffness, and efficient particleParticle packing. The findings demonstrate the technical feasibility of producing eco-efficient soil–cementCement bricks using these residues, providing environmental benefits and meeting Brazilian standards for strength and durability. Future work should explore long-term durability, pilot-scale production, and detailed microstructural investigations.