With the help of the developing concrete technology, light concrete and fly ash may be used in several concrete-related fields. To provide protection from radiation, which is one of the current problems of the world, several researchers have used fly ash, but very few researchers have worked on light concrete. To be protected from the effects of radiation, researchers have examined gamma radiation absorption properties by using heavy concrete and heavy aggregates. In this study, by using Class C fly ash at the doses of 30–50–100% instead of cement, three different light concretes were prepared. Density and compressive strength experiments were conducted on the composite blocks prepared with dimensions of 50*50*50 mm, and linear absorption coefficients (cm⁻¹), mass attenuation coefficients (MAC) and Tenth value layer (TVL) radiation interaction parameters were measured. Radiation interaction parameters were obtained using an HP Ge gamma detector. For radiation measurements, four different photon energies as 583 keV (¹³³Ba), 609 keV (¹³³Ba), 661 keV (¹³⁷Cs) and 911 keV (¹³³Ba) were used. As a result of the analyses, it was determined that compressive strength decreased as the fly ash content increased, the lowest compressive strength values were obtained in the samples containing 100% fly ash among the prepared composites, and density increased as the fly ash content decreased. It was observed that, in the prepared composites, as the energy levels increased, the linear absorption coefficients also increased, and the samples containing 30% fly ash provided the best TVL value on the energy level of 911 keV. With this study, it was revealed that fly ashes that are used in many fields could be used as a radiation shield. Additionally, with this study, due to not using heavy aggregates and due to the production of light concrete in the production of radiation shields, the cost of shield production will significantly decrease.

借助不断发展的混凝土技术，轻质混凝土和粉煤灰可用于多个混凝土相关领域。为了防止辐射，这是世界当前的问题之一，一些研究人员使用了粉煤灰，但很少有研究人员研究轻质混凝土。为了免受辐射的影响，研究人员通过使用重混凝土和重骨料检查了伽马辐射吸收特性。在这项研究中，通过使用剂量为 30-50-100% 的 C 级粉煤灰代替水泥，制备了三种不同的轻质混凝土。对尺寸为50*50*50 mm、线性吸声系数(cm ^-1)，测量了质量衰减系数 (MAC) 和第十值层 (TVL) 辐射相互作用参数。使用 HP Ge 伽马探测器获得辐射相互作用参数。对于辐射测量，四种不同的光子能量为 583 keV ( ¹³³ Ba)、609 keV ( ¹³³ Ba)、661 keV ( ¹³⁷ Cs) 和 911 keV ( ¹³³Ba) 被使用。分析结果表明，随着粉煤灰含量的增加，压缩强度降低，在制备的复合材料中含有 100% 粉煤灰的样品的抗压强度值最低，密度随着粉煤灰含量的降低而增加. 观察到，在制备的复合材料中，随着能级的增加，线性吸收系数也增加，含有 30% 飞灰的样品在 911 keV 的能级上提供了最佳的 TVL 值。通过这项研究，发现在许多领域中使用的粉煤灰可以用作辐射屏蔽。此外，在这项研究中，由于不使用重骨料，并且由于在生产辐射屏蔽时生产轻质混凝土，