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

  • Hee Seob Lima, Han Seung Leeb and Seung Jun Kwona,*

  • aDepartment of Civil Engineering, Hannam University, 70 Hannam-ro, Daedeok-gu, Daejeon, 34430, Korea
    bDepartment of Architecture Engineering, Hanyang University-ERICA, Ansan 15588, Korea

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.


Keywords: Electric arc furnace oxidizing slag, Concrete, Radiation shielding concrete, Magnetite, X-ray, Gamma-ray

This Article

  • 2019; 20(4): 363-371

    Published on Aug 31, 2019

  • Received on Feb 15, 2019
  • Revised on Jul 16, 2019
  • Accepted on Jul 24, 2019

Correspondence to

  • Seung Jun Kwon

  • Department of Civil Engineering, Hannam University, 70 Hannam-ro, Daedeok-gu, Daejeon, 34430, Korea
    Tel : +82-42-629-8020
    Fax: +82-42-629-8366

  • E-mail: jjuni98@hannam.ac.kr