These days, the utilization of industrial solid waste substances for gaining added-value products has become of prime importance for securing a more sustainable future. With this in mind, the present study handles using waste bricks bottom ash (BBA) involving bismuth oxide (Bi₂O₃) dopant for understanding the potentiality as a radiation protection material. Four different material systems, 1 to 4, were designed using the batches of xBi₂O₃ - (100-x)BBA where x: 0, 5, 10, and 20 wt%. The intended pellets (D: 28 mm) were made ready after precisely weighing, mixing, and pressing steps. For sintering, the prepared bodies, a heat treatment process was initiated by applying 10 ⁰C/min to reach 1100 ⁰C, which was then dwelled 1h at the peak temperature. Afterward, the successfully produced waste-derived material systems were subjected to some material characterization analysis, as well as theoretical radiation shielding computations via Phy-X/PSD. According to the density measurements, we found out that the increasing doping rate from 0 to 20 wt% in Bi₂O₃ led to the improvement in bulk density from 1.3857 to 1.6177 g/cm³ in the respective order. Additionally, the compressive strength showed an increasing trend from 7.28 to 8.01 MPa with the increasing Bi₂O₃ contribution. On the other hand, the essential radiation shielding parameters, linear attenuation coefficient (LAC), half-value layer (HVL), and effective atomic number (Z_eff) were figured out, and we found out that all parameters were enhanced owing to the higher Bi₂O₃ addition. As a result, the sample-4 can be preferred as an alternative material system where radiation protection is significant.

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