Graphene Oxide/Cement Composites for Electromagnetic Interference Shielding

Graphene oxide (GO) synthesized through a modified Hummers’ method was added into cement matrix to prepare GO/cement. The microstructure, mechanical properties, and the electromagnetic shielding effectiveness (SE) at 8.2–12.4 GHz of GO/cement composite were investigated. It has been observed that incorporation of GO in the cement matrix can regulate to form flower-like hydration crystals and distinctly enhance the flexural/compressive early stage strength of GO/cement composites. Furthermore, GO sheets played a vital role in effectively improve the shielding effectiveness with the dominant shielding mechanism of absorption of electromagnetic radiation.