Co-Utilization of Recycled Ceramic Waste and Sawdust in Refractory Bricks: Thermal–Mechanical Trade-offs and Sustainability Potential

Complete underlying experimental data for the manuscript "Co-Utilization of Recycled Ceramic Waste and Sawdust in Refractory Bricks: Thermal–Mechanical Trade-offs and Sustainability Potential," submitted to the International Journal of Sustainable Engineering. Includes mix design proportions, raw material characterization (Atterberg limits, particle size distribution, XRF composition), and individual specimen-level replicate readings behind every averaged value reported in the article (water absorption, compressive strength, thermal conductivity, refractoriness observations)