Abstract In this study, cement additives were replaced with cement in mortar mixtures by mass. Mortar specimens were prepared with different additives and dosages which were mechanically and electromagnetically tested. According to the compressive strength test results, mortars containing ground granulated blast furnace slag had weak early age strength and strong later age compressive strengths values, mortars containing fly ash had lower compressive strength value with increasing amount of additives in the mortar mixture for both 7 and 28-day samples, mortars containing silica fume had the maximum strength values at 20% replacement level and lastly the mortars including more than 10% rice husk ash showed weaker strength behaviors with increasing amount of rice husk ash. Besides, electromagnetic responses of the mortar samples were investigated in the frequency range of 3–18 GHz. The reflection and transmission values were measured and the absorption characteristics were calculated. According to the electromagnetic test results, it is revealed that the mortars including ground granulated blast furnace slag can be utilized in the applications of high stealth technology and electromagnetic shields in a wide frequency range of communication field. An increase in the ratio of fly ash in the mortars reduces the transmission of the electromagnetic wave. Mortars including silica fume had very low values of reflection and transmission. Hence, it is expected that the absorption values must be high due to dependency of absorption to reflection and transmission, and it can be said that mortar with rice husk ash exhibits a strong absorber behavior.

中文翻译：

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含有不同置换水平的磨粒高炉矿渣、粉煤灰、硅粉和稻壳灰的水泥基复合材料的力学和电磁性能

摘要 在本研究中，水泥外加剂在砂浆混合物中按质量被水泥代替。砂浆试样是用不同的添加剂和剂量制备的，并进行了机械和电磁测试。抗压强度试验结果表明，7 和 7 和 7 种砂浆混合料中掺入粉煤灰的砂浆早期抗压强度值较弱，后期抗压强度值较高，粉煤灰砂浆抗压强度值随着砂浆混合物中添加剂用量的增加而降低。 28 天的样品中，含有硅粉的砂浆在 20% 置换水平时具有最大强度值，最后含有超过 10% 稻壳灰的砂浆随着稻壳灰用量的增加表现出较弱的强度行为。除了，在 3-18 GHz 的频率范围内研究了砂浆样品的电磁响应。测量反射值和透射值并计算吸收特性。电磁测试结果表明，包括磨碎的高炉矿渣的砂浆可用于高隐身技术和电磁屏蔽在较宽频率范围的通信领域中的应用。砂浆中粉煤灰比例的增加减少了电磁波的传输。包括硅粉在内的砂浆具有非常低的反射和透射值。因此，由于吸收对反射和透射的依赖性，预计吸收值必须很高，