In this study, electric arc furnace (EAF) slag as a filler in an epoxy matrix is investigated to validate its use instead of sand in construction applications, such as epoxy screeds. The slag chemical composition was determined and morphological and elemental analysis of its phases was analysed. The leaching of Cr, Mo, and V was evaluated both on EAF slag and on the composites materials, demonstrating that polymeric matrix inhibits the release of heavy metals. Epoxy composites with different percentages of slag were mechanically characterized by flexural test, compression test, and Vickers microhardness. The samples were compared to those of epoxy resin filled with sand in the same volume percentage. As a reference, a commercial product specifically formulated for laying epoxy screeds was also tested. The results demonstrated that EAF slag could substitute the sand in epoxy screeds, obtaining a composite material with equal and even superior mechanical properties.

在这项研究中，研究了电弧炉 (EAF) 炉渣作为环氧树脂基质中的填料，以验证其在建筑应用（如环氧树脂熨平板）中代替沙子的用途。确定炉渣化学成分并分析其相的形态和元素分析。在 EAF 炉渣和复合材料上对 Cr、Mo 和 V 的浸出进行了评估，表明聚合物基质抑制了重金属的释放。通过弯曲试验、压缩试验和维氏显微硬度对具有不同炉渣百分比的环氧复合材料进行力学表征。将样品与填充相同体积百分比的沙子的环氧树脂进行比较。作为参考，还测试了专门为铺设环氧熨平板而配制的商业产品。