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混凝土发展历史已有１００多年，它已成为世界范围内应用最广、用量最大的建筑材料。混凝土作为当今世界上最主要的建筑材料之一，它具有诸多重要优点，特别是其具有很充分的改造性。如通过掺入碳纤维，可使混凝土的电磁屏蔽性能与普通混凝土相比有明显的改变。在当今信息技术飞速发展的时代，信息技术的载体计算机网络、信息处理设备、电子通信设备及各种电器设备已在各个行业广泛应用，特别是电子元件小型化、高度集成化以及电子仪器仪表轻量化、高速化和数字化，信号电平小，易受外界电磁干扰而使其动作失误从而带来严重后果，困此必须采取各种有效防护措施，才能保障其不受干扰和瘫痪；从电磁信号泄露失密方面而言，无论军事部门秘密或是商业部门秘密通过电磁波的泄露，都会给相关单位造成极大的损失，为此必须采取相应的屏蔽措施，防止电磁信号泄露和被侦测，以预防失密；从预防电磁波污染来讲，现在对各种电磁污染危害的防护已引起环保部门和有关方面的高度重视，屏蔽电磁污染使其限定在一定区域，已成为环保防护最为活跃的研究方面之一。因此对混凝土进行电磁屏蔽改性研究，使建筑维护结构本身就具有满足相应指标的电磁屏蔽性能，将具有极其重要的意义，这是时代发展对混凝土提出新的要求。
Concrete has a history of more than 100 years and has become the most widely used and largest amount of building materials in the world. As one of the most important building materials in the world today, concrete has many important advantages, in particular, it has a very full reworkability. Such as through the incorporation of carbon fiber, electromagnetic shielding properties of concrete can be significantly compared with ordinary concrete changes. In today’s era of rapid development of information technology, information technology carrier computer networks, information processing equipment, electronic communications equipment and a variety of electrical equipment has been widely used in various industries, especially the miniaturization of electronic components, highly integrated and light electronic instrumentation Quantify, speed and digitization, the signal level is small, susceptible to external electromagnetic interference and make its mistakes and thus have serious consequences, so this must be taken to take effective protective measures in order to protect them from interference and paralysis; from electromagnetic signals Leakage of confidentiality terms, both the military sector secrets or the secrets of the business sector through the leakage of electromagnetic waves, will cause great losses to the relevant units, for which we must take appropriate shielding measures to prevent the electromagnetic signal leakage and being detected in order to prevent In terms of preventing electromagnetic wave pollution, nowadays, the protection of various kinds of electromagnetic pollution hazards has drawn great attention from the environmental protection departments and relevant parties. Shielding the electromagnetic pollution and confining it to a certain area has become one of the most active research fields in environmental protection . Therefore, the study of electromagnetic shielding modification of concrete, so that the building maintenance structure itself has to meet the corresponding indicators of electromagnetic shielding performance, will have extremely important significance, which is the development of the times put forward new requirements for concrete.