新型水泥基吸波材料的性能分析研究  

Investigation on Properties of New Type Cement-based Absorbing Materials

作　　者：高翔[1] 孙亚飞[2] 耿飞[2] 徐少云[2] 

机构地区：[1]东北大学工业设计系,沈阳110004 [2]南京航空航天大学土木系,210016

出　　处：《混凝土与水泥制品》2015年第4期6-8,共3页China Concrete and Cement Products

基　　金：国家和江苏省博士后基金项目(2014M551588;1301057B);江苏省建设厅(2013ZD12)资助项目

摘　　要：通过三层设计,使新型水泥基吸波材料与空间波阻抗实现良好的匹配,并具有优良的电磁波损耗特性,测试了新型吸波材料的吸波性能和抗压强度。研究表明,该水泥基吸波板反射率均低于-5.9d B,最小反射率出现在4.5GHz,达-22.4d B;小于-10d B有效带宽为10.8GHz,占整个波段63.3%;水泥基吸波材料28d抗压强度为49.2MPa,较基准的降低了15%。By triple designing, absorbing materials make it possible that match with space wave impedance, which has excellent electromagnetic loss characteristics. The absorbing properties and compressive strengths of cement-based materials were investigated. Results showed that the reflectivity of triple-layer cement based absorbing panel was lower than-5.9d B in the frequency range of 2~18GHz, and the minimum reflectance was-22.4d B in 4.5GHz. Less than-10 d B effective bandwidth was about 10.8GHz, which covered 63.3% of the whole bandwidth. The compressive strength of cement based absorbing material was 49.2MPa curing at 28 days, and it was reduced by 15% than that of the based specimen.

关 键 词：吸波材料 吸波性能 抗压强度 反射率 碳纳米管 

分 类 号：TU528.01[建筑科学—建筑技术科学]