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Mechanical properties and radiation shielding performance in concrete with electric arc furnace oxidizing slag aggregate

권성준|Hee Seob Lim|Han Seung Lee
청정에너지연구소 (Clean-Energy Research Institute)|2019.08|Journal of Ceramic Processing Research|제20권 제4호|pp. 363-371|DOI 10.36410/jcpr.2019.20.4.363

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키워드

X-rayConcreteMagnetiteElectric arc furnace oxidizing slagRadiation shielding concreteGamma-ray.
주제분류재료공학

초록

In this study, physical properties of normal concrete, magnetite concrete, EAF concrete, and EAF concrete with added iron powder were evaluated and a feasibility of radiation shielding is also evaluated through irradiation tests against X-rays and gamma-rays. While the unit weight of EAF concrete (3.21 t/m3) appeared lower than that of magnetite concrete (3.50 t/m3), the results in compressive strength of EAF concrete were greater than those in magnetite and normal concrete. While the radiation transmission rate of normal concrete reaches 26.0% in the X-ray irradiation test, only 6.0% and 9.0% of transmission rate were observed in magnetite concrete and linear relationship with unit volume weight and radiation shielding. In the gamma-ray irradiation test, the performance of EAF and magnetite concretes appeared to be similar. Through the results on the excellent physical properties and radiation shielding performance a potential applicability of EAF concrete to radiation shielding was verified.

Abstract

In this study, physical properties of normal concrete, magnetite concrete, EAF concrete, and EAF concrete with added iron powder were evaluated and a feasibility of radiation shielding is also evaluated through irradiation tests against X-rays and gamma-rays. While the unit weight of EAF concrete (3.21 t/m3) appeared lower than that of magnetite concrete (3.50 t/m3), the results in compressive strength of EAF concrete were greater than those in magnetite and normal concrete. While the radiation transmission rate of normal concrete reaches 26.0% in the X-ray irradiation test, only 6.0% and 9.0% of transmission rate were observed in magnetite concrete and linear relationship with unit volume weight and radiation shielding. In the gamma-ray irradiation test, the performance of EAF and magnetite concretes appeared to be similar. Through the results on the excellent physical properties and radiation shielding performance a potential applicability of EAF concrete to radiation shielding was verified.

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