研究了不同密度泡沫混凝土的电磁屏蔽性能,结果表明孔径较大时泡沫混凝土具有电磁屏蔽能.在泡沫混凝土制备过程中加入石墨和碳纤维,改善了泡沫混凝土的电磁屏蔽能.研究了石墨和碳纤维掺量对泡沫混凝土电磁屏蔽能的影响.结果表明,石墨不能增加泡沫混凝土电磁屏蔽能;碳纤维泡沫混凝土在0～100 MHz频率范围内,屏蔽效能SE随着频率增加而迅速降低,在100～1500 MHz频率范围内,屏蔽效能SE随着频率增加而增加,在100 MHz附近,碳纤维电磁屏蔽砂浆的SE最小.
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