Investigation of the mechanic, electromagnetic characteristics and shielding effectiveness of concrete with boron ores and boron containing wastes

Abstract

In this study, mechanical properties electromagnetic (EM), and shielding effectiveness of concrete samples containing boron product and wastes was investigated in details. In order to increase shielding effectiveness of concrete samples from electromagnetic waves, hardened concretes containing boron product and wastes are analyzed according to the Institute of Electrical and Electronics Engineers (IEEE) standards. In addition, the effects of the additives on the strength behaviors of the concretes are also examined to report that besides improving shielding behavior, addition of the minerals would not diminish strength parameters. As a result, the concretes containing boron product and wastes provides 3.16 to 100 times better shielding effectiveness than that of concrete containing only Portland cement which is the control sample. While the additives increase or do not affect negatively compressive strength of the concrete. As a conclusion, additives in concretes enhance shielding effectiveness without affecting the strengths parameters negatively. © 2020 Elsevier Ltd