Optimizing the shielding properties of strength-enhanced concrete containing marble

Ahmed Abdel-Latif; Maged  Kassab; M. I. Sayyed; H. O.  Tekin

doi:10.4279/pip.120005

Authors

A. Abdel-Latif M. Department of Mathematics and Eng. Physics - Faculty of Engineering - Fayoum University, 63514 Fayoum, Egypt.
M. M. Kassab Department of Mathematics and Eng. Physics - Faculty of Engineering - Fayoum University, 63514 Fayoum, Egypt.
M. I. Sayyed Department of Physics, Faculty of Science - University of Tabuk, Saudi Arabia
H. O. Tekin Department of Radiotherapy, Vocational School of Health Services, Uskudar University, Turkey. Medical Radiation Research Center (USMERA), Uskudar University, Turkey.

DOI:

https://doi.org/10.4279/pip.120005

Keywords:

Compression Strength, Mass Attenuation, Exposure Buildup Factor, Shielding Concrete, MCNPX, Fast removal cross section

Abstract

The purpose of this study is to develop a low cost, locally produced concrete mixture with optimum marble content. The resulting mixture would have enhanced strength properties compared to the non-marble reference concrete, and improved radiation shielding properties. To accomplish these goals five concrete mixtures were prepared, containing 0, 5, 10, 15, and 20% marble waste powder as a cement replacement on the basis of weight.
These samples were subjected to a compressive strength test. The shielding parameters such as mass attenuation coefficients μm, mean free path MFP, effective atomic number $Z_{eff}$ and exposure build-up factors EBF were measured, and results were compared with those obtained using the WinXcom program and MCNPX code in the photon energy range of 0.015 - 3 MeV. Moreover, the macroscopic fast neutron removal cross-section (neutron attenuation coefficient) was calculated and the results presented. The results show that the sample which contains 10% marble has the highest compressive strength and potentially good gamma ray and neutron radiation shielding properties.