The target of the present paper is to investigate the heavy metals effect on the attenuation properties of the geopolymer mortar used as radiation shielding for nuclear facilities. Radiation shielding properties of geopolymer mortar mixtures prepared using different types of heavy metals such as lead phosphate, barium sulfate in addition to some industrial heavy iron metal wastes and lead metals such as electric arc furnace slag (EAFS) and lead slag as partial replacement of blast furnace slag were investigated comparatively with hardened Portland cement mortar. Fine aggregates used were local sand dunes, air cooled slag, and lead slag, while the used activator was 8% sodium hydroxide. The effect of fine heavy metals on the bulk density of geopolymer mortar was investigated, in addition to gamma linear attenuation coefficients for the studied mortar against Cs¹³⁷ (662 keV) and Co⁶⁰ (1173 and 1332 keV), also the most important gamma transmission parameters were measured as (half-value layer, HVL; tenth-value layer, TVL and mean free path, MFP). It was found that, the density of the blast furnace slag geopolymer mortar increases upon replacing sand dunes with fine lead slag aggregates as well as air cooled slag. In addition, the geopolymer mortars containing EAFS as fine materials have the highest density compared to lead slag, barium sulfate and lead phosphate, respectively. The results indicate that, blast furnace slag geopolymer mortar made of lead slag as a fine aggregate containing EAFS possess high gamma rays shielding properties compared the other mortars.

本文的目的是研究重金属对用作核设施辐射防护的地聚合物砂浆的衰减性能的影响。除一些工业重铁金属废料和诸如电弧炉炉渣（EAFS）和铅渣等作为爆炸的部分替代品外，还使用不同类型的重金属（如磷酸铅，硫酸钡）和其他金属制备的地聚合物砂浆混合物的辐射屏蔽性能用硬化的波特兰水泥砂浆对炉渣进行了比较研究。使用的细骨料是当地的沙丘，风冷炉渣和铅渣，而使用的活化剂是8％的氢氧化钠。研究了精细重金属对地质聚合物砂浆堆积密度的影响，¹³⁷（662 keV）和Co ⁶⁰（1173和1332 keV），最重要的伽马透射参数也被测量为（半值层，HVL；十值层，TVL和平均自由程，MFP）。结果发现，用细铅渣集料和风冷渣代替沙丘后，高炉渣土聚合物砂浆的密度增加。此外，与铅渣，硫酸钡和磷酸铅相比，含有EAFS作为精细材料的地质聚合物砂浆具有最高的密度。结果表明，与其他砂浆相比，由铅渣制成的含有EAFS的细骨料制成的高炉矿渣土聚合物砂浆具有较高的γ射线屏蔽性能。