Experimental Analysis of the Aging Effects on Shielding Effectiveness of Cementitious Composites

The shielding effectiveness of cementitious composites is analyzed by means of the nested reverberation chamber method. This feature is evaluated as function of time in order to estimate the aging effects. Different cementitious mixtures are considered and carbon/metallic fibers are put within the mortar in order to improve the shielding effectiveness considering the frequency band from 0.8 GHz up to 8.4 GHz.