生态型钢渣粉超高性能混凝土（UHPC）的制备及性能、双效益多目标研究
Preparation and properties, dual-benefit multi-objective study of ecological ultra-high performance concrete (UHPC) with steel slag powder
关键词：
钢渣粉；超高性能混凝土（UHPC）；工作性；力学性能；碳排放量；成本
Key words：
Steel slag powder; Ultra-high performance concrete(UHPC); Workability; Mechanical property; Carbon emission; Cost
刊期：
2026年第2期
DOI：
10.19761/j.1000-4637.25050224
文章编号：
基金项目：
江苏省基础研究计划自然科学基金——青年基金项目（BK20220254）。
作者：
龙嘉琳1，李斐斐2，3，宋秋磊2，3，*，何柯瑶4，田 寅2，3，赵优俊5，陈劲戈2，3
单位：
1.西南水泥有限公司，四川 成都 610000；2.苏州混凝土水泥制品研究院有限公司，江苏 苏州 215004；3.江苏省高耐久混凝土工程技术研究中心，江苏 苏州 215004；4.西南交通大学，四川 成都 611756；5.华东材料有限公司，江苏 南京 210003
摘要
摘 要：研究了钢渣粉作为辅助胶凝材料，其掺量（0、10%、20%、30%、40%、50%）对超高性能混凝土（Ultra-high performance concrete，UHPC）工作性、力学性能、物相组成、微观形貌、成本和碳排放量的影响。结果表明：随着钢渣粉掺量的增加，UHPC的流动度、28 d抗压强度均先增后降，28 d抗折强度降低；钢渣粉的掺入及掺量调整均未改变UHPC水化产物的类型，适量钢渣粉能填充孔隙，参与水化反应，提高基体密实度；当钢渣粉掺量为30%时，UHPC的综合性能、经济效益与生态效益实现最优平衡。
Abstract： The effect of steel slag powder as a supplementary cementitious material at various content levels (0, 10%, 20%, 30%, 40%, 50%) on the workability, mechanical properties, phase composition, microstructure, cost, and carbon emissions of ultra-high performance concrete (UHPC) was investigated. The results show that with the increase of steel slag powder content, the fluidity and 28 d compressive strength of UHPC both first increase and then decrease, while the 28 d flexural strength decreases. The addition of steel slag powder and the adjustment of its content neither alter the type of UHPC hydration products. The appropriate content of steel slag powder can fill pores, participate in hydration reactions, and improve the density of the matrix. When steel slag powder content is 30%, optimum balance is achieved between the comprehensive performance, economic benefits, and ecological benefits of UHPC.
结论
（1）随着钢渣粉掺量的增加，UHPC的流动度、7 d和28 d抗压强度均先增后降，7 d和28 d抗折强度均不断降低。钢渣粉的掺入及掺量调整均未改变UHPC水化产物的类型，适量钢渣粉能填充孔隙，参与体系水化反应，提高基体密实度。
（2）当钢渣粉掺量为30%时，UHPC 的综合性能、经济效益与生态效益实现最优平衡。此时UHPC的流动度为273 mm，28 d抗压强度为128.2 MPa，较基准组分别提高了7.1%和18.4%；碳排放量为627.25 kg/m3，总成本为1 366.16 元/m3，较基准组分别降低了19.94%和4.42%，实现了性能提升与低碳经济的协同优化。
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引用本文
龙嘉琳,李斐斐,宋秋磊,等.生态型钢渣粉超高性能混凝土（UHPC）的制备及性能、双效益多目标研究[J].混凝土与水泥制品,2026(2):1-5,10.
LONG J L,LI F F,SONG Q L,et al.Preparation and properties, dual-benefit multi-objective study of ecological ultra-high performance concrete (UHPC) with steel slag powder[J].China Concrete and Cement Products,2026(2):1-5,10.
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