摘   要：采用热泼-热闷联合处理工艺对钢渣进行改性，研究了水泥用量（3.0%、3.5%、4.0%）与成型静置时间（0、1、2、3 h）对工业废渣稳定材料最佳含水率、最大干密度、压实度及无侧限抗压强度的影响，优选出该稳定材料的最优配合比，并将其应用于实际工程。结果表明：采用热泼-热闷联合处理工艺可显著改善钢渣的级配、f-CaO含量及体积安定性；工业废渣稳定材料的最优配合比为m_水泥∶m_粉煤灰∶m_碎石∶m_钢渣∶m_水=3.5∶6.5∶56.0∶34.0∶6.0，且混合料成型静置时间需严格控制在2 h内；工业废渣稳定材料应用于路面底基层时，其各项性能均满足相关标准要求；在实际应用过程中，可通过优化配合比、精准调控拌合含水率、改进摊铺碾压工艺、规范施工环境等措施提升施工质量。研究成果可为钢渣资源化利用及道路工程绿色建设提供技术支撑。

Abstract： Steel slag was modified by the combined hot-pouring and hot-steaming treatment process. The effects of cement content (3.0%, 3.5%, 4.0%) and molding standing time (0, 1, 2, 3 h) on the optimum moisture content, maximum dry density, compaction degree and unconfined compressive strength of the industrial waste residue stabilized material were investigated. On this basis, the optimal mix proportion of the stabilized material was screened out, and its application in practical engineering was further implemented. The results show that the gradation, f-CaO content and volume stability of steel slag are significantly improved by the combined hot-pouring and hot-steaming treatment process. The optimal mix proportion of the industrial waste residue stabilized material is as follows: m_cement∶m_{fly ash}∶m_{crushed stone}∶m_{steel slag}∶m_water=3.5∶6.5∶56.0∶34.0∶6.0. Meanwhile, the molding standing time of the mixture is required to be strictly controlled within 2 h. When the industrial waste residue stabilized material is applied to the pavement subbase, its properties meet the requirements of relevant standards. In the actual application process, the construction quality can be effectively improved by optimizing mix proportion, accurately regulating mixing moisture content, improving paving and rolling technology, and standardizing construction environment. The research findings can provide technical support for the resource utilization of steel slag and the green construction of road engineering.