Fly Ash in Clay Composites for Enhanced EM Shielding and Improved Physical and Mechanical Properties-Literature Review

An overview of the research on using clay with fly ash addition for enhanced electromagnetic (EM) properties in the frequency range up to 10 GHz with application in civil engineering materials was studied.In recent years, due to the development of technology, the use of devices that emit electromagnetic radiation, such as cell phone networks (3G, 4G, 5G), microwave ovens, global positional systems (GPS), radars, etc. has increased.Consequently, there is a growing concern about the harmful effects of EM radiation on human health.Fly ash has proven to have the potential for shielding against electromagnetic radiation in cementitious materials.This paper investigates the potential of fly ash in clay bricks to increase resistance to the penetration of electromagnetic waves, as well as the impact on its physical and mechanical properties.