Electromagnetic Shielding and Absorption of Carbon Nanotube Doped Cement Composites

In this paper, we first discuss the principle of electromagnetic shielding and absorption of material. On this basis, we further analyze the electromagnetic shielding dosage possibilities for cement-based materials, thus give a brief on absorption behaviors of carbon nanotube (CNT) doped cement composites. Finally, a kind of CNT-doped foam concrete in form of a lightweight panel is proposed for special building electromagnetic shielding.