| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5474904 | Annals of Nuclear Energy | 2017 | 7 Pages |
Abstract
Incorporation of barite-fluorspar mine waste (BFMW) as a fine aggregate additive has been investigated for its effect on the mechanical and shielding properties of cement mortar. Several mortar mixtures were prepared with different proportions of BFMW ranging from 0% to 30% as fine aggregate replacement. Cement mortar mixtures were evaluated for density, compressive and tensile strengths, and gamma ray radiation shielding. The results revealed that the mortar mixes containing 25% BFMW reaches the highest compressive strength values, which exceeded 50Â MPa. Evaluation of gamma-ray attenuation was both measured by experimental tests and computationally calculated using MicroShield software package, and results have shown that using BFMW aggregates increases attenuation coefficient by about 20%. These findings have demonstrated that the mine waste can be suitably used as partial replacement aggregate to improve radiation shielding as well as to reduce the mortar and concrete costs.
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Authors
Wissem Gallala, Yousra Hayouni, Mohamed Essghaier Gaied, Michael Fusco, Jasmin Alsaied, Kathryn Bailey, Mohamed Bourham,