Journal Published Online: 09 March 2020
Volume 49, Issue 5

Improvement of Shielding Properties of Cement Paste by Slag Addition from Local Steel Industry

CODEN: JTEVAB

Abstract

The effect of iron slag powder (ISP) obtained from the local steel industry as an effective addition to improve the radiation shielding ability of cement paste was evaluated. Ten cement pastes with different ISP-to-cement ratios, up to 90 % by mass of cement, were prepared. In addition, the compressive strength of the cement paste as a function of slag content was investigated. The γ-ray attenuation measurements were performed by a NaI (Tl) detector at 59.54, 511, 662, 1,173.2 and 1,332.5 keV. The computation of γ-ray attenuation parameters was obtained by the WinXCom program. Both measured and calculated shielding results are in good agreement. The results demonstrate that the addition of slag significantly alters the cement paste density, γ-ray attenuation coefficient, effective atomic number (Zeff), effective electron density (Neff), and kerma coefficients (k). Moreover, the neutron shielding of cement paste has been evaluated in terms of the macroscopic removal cross section of the fast neutron (ΣR). In conclusion, it is argued that the incorporation of slag results in a significant improvement in γ-ray shielding ability. In addition, the results showed that the best ISP addition proportion that leads to the best shielding properties is about 60 % (by mass of cement).

Author Information

El-Khayatt, A. M.
Physics Department, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh, Saudi Arabia Reactor Physics Department, Nuclear Research Center, Atomic Energy Authority, Nasr City, Cairo, Egypt
Al-Rajhi, M. A.
Physics Department, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh, Saudi Arabia
Hassan, A. T.
Department of Basic Science, October High Institute of Engineering & Technology – OHI, Giza, Egypt
Idriss, Hajo
Department of Physics, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh, Saudi Arabia Sudan Atomic Energy Commission, Khartoum, Sudan
Pages: 16
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Stock #: JTE20190694
ISSN: 0090-3973
DOI: 10.1520/JTE20190694