Građevinar, Vol. 78 No. 01., 2026.
Preliminary communication
https://doi.org/10.14256/JCE.4320.2025
Experimental investigation of sustainable gamma radiation shielding concrete
Vadivel Murugesan
Senthil Kumar Govindan
Natarajan Seralathan
Amirtharaj John
Abstract
The construction industry is increasingly adopting sustainable practices to mitigate the environmental impact from excessive consumption of natural aggregates. This study investigated the incorporation of copper slag (CS) and recycled ceramic tiles (RCT) as partial aggregate replacements in concrete at levels ranging from 50 % to 90 %, with a focus on both the structural integrity and gamma radiation shielding performance. Results indicated improvements in slump, density, and compressive, tensile, and flexural strengths. The optimal mixture, with 60 % replacement, exhibited a maximum density increase increases of 45.9 % and an 18.18 % enhancement in attenuation coefficient (μ). A strong correlation (R² = 0.9743) between density and μ confirms the effectiveness of these materials, making CS and RCT viable sustainable aggregate alternatives for radiation shielding concrete.
Keywords
sustainable concrete; copper slag; recycled tiles; mechanical properties; radiation shielding
Hrčak ID:
345453
URI
Publication date:
2.3.2026.
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