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: mcement∶mfly ash∶mcrushed stone∶msteel slag∶mwater=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.

史鹏飞,邹伟,于诚谦,等.工业废渣稳定材料性能优化及其在路面底基层中的应用[J].混凝土与水泥制品,2026,53(3):110-115. SHI P F,ZOU W,YU C Q,et al.Performance optimization of industrial waste residue stabilized material and its application in pavement subbase[J].China Concrete and Cement Products,2026,53(3):110-115 (in Chinese).

摘   要：为了有效提高堆石坝面板混凝土的耐久性能，本文研究了3种功能性外加剂（膨胀剂、抗裂剂、水化热抑制剂）对堆石坝面板混凝土力学性能、热学性能、干燥收缩、抗裂性能的影响。结果表明：掺入适量抗裂剂、膨胀剂、水化热抑制剂均会导致混凝土各龄期抗压强度、轴拉强度、极限拉伸值降低；掺入适量抗裂剂、膨胀剂有利于降低混凝土的干燥收缩，而掺入适量水化热抑制剂对降低干燥收缩的作用相对较小；掺入适量抗裂剂、膨胀剂，混凝土的绝热温升降低，掺入适量水化热抑制剂减缓了水泥的水化进程，使混凝土的绝热温升过程延长，但不会影响水泥的最终水化；掺入适量抗裂剂、膨胀剂、水化热抑制剂均有利于混凝土抗裂性能的改善。Abstract: In order to effectively improve the durability of rockfill dam face slab concrete, the effects of three functional admixtures (expansion agent, crack resistance agent, and hydration heat inhibitor) on the mechanical properties, thermal properties, drying shrinkage, and crack resistance performance of rockfill dam face slab concrete were studied in this paper. The results indicate that the addition of appropriate amounts of crack resistance agent, expansion agent, and hydration heat inhibitor can lead to a decrease in the compressive strength, axial tensile strength, and ultimate tensile value of concrete at various ages. Adding an appropriate amount of crack resistance agent and expansion agent is beneficial for reducing the drying shrinkage of concrete, while adding an appropriate amount of hydration heat inhibitor has a relatively small effect on reducing drying shrinkage. Adding an appropriate amount of crack resistance agent and expansion agent reduces the adiabatic temperature rise of concrete. Adding an appropriate amount of hydration heat inhibitor slows down the hydration process of cement, prolongs the adiabatic temperature rise process of concrete, but does not affect the final hydration of cement. Adding an appropriate amount of crack resistance agent, expansion agent, and hydration heat inhibitor is beneficial for improving the crack resistance performance of concrete.

崔安哲,蒋文广,胡小虎,等.功能性外加剂对堆石坝工程用面板混凝土性能的影响研究[J].混凝土与水泥制品,2026,53(3):105-109. CUI A Z,JIANG W G,HU X H,et al.Study on the influence of functional admixtures on the performance of face slab concrete for rockfill dam engineering[J].China Concrete and Cement Products,2026,53(3):105-109 (in Chinese).