基于胶凝材料体系优化的超高性能混凝土（UHPC）的抗压强度与环境效益研究
Research on the compressive strength and environmental benefits of ultra-high performance concrete (UHPC) based on optimization of cementitious material system
关键词：
超高性能混凝土（UHPC）；胶凝材料体系；抗压强度；矿物掺合料；环境效益
Key words：
Ultra-high performance concrete (UHPC); Cementitious material system; Compressive strength; Mineral admixture; Environmental benefit
刊期：
2026年第3期
DOI：
10.19761/j.1000-4637.25090429
文章编号：
基金项目：
2024年度北京市科技服务业专项支持科技服务业企业效能提升项目（20240467355）；宁波市电力设计院有限公司科技项目。
作者：
王朴炎1，张 洁1，周东杰1，胡慧峰1，杨艳婷1，俞梦迪1，贺 阳2，3，*
单位：
1.宁波市电力设计院有限公司，浙江 宁波 315000；2.中国建筑科学研究院有限公司，北京 100013； 3.中建研科技股份有限公司，北京 100013
摘要
摘 要：研究了不同水泥型号（P·O 42.5级水泥、P·O 52.5级水泥）、硅灰掺量（5%~20%）、粉煤灰掺量（10%~30%）和矿渣粉掺量（10%~30%）对超高性能混凝土（Ultra-high performance concrete，UHPC）抗压强度的影响，并结合生命周期评价（Life cycle assessment，LCA）方法探讨了UHPC的环境效益。结果表明：与P·O 42.5级水泥相比，采用P·O 52.5级水泥的UHPC抗压强度更高；掺入适量矿物掺合料可有效提升UHPC的抗压强度，同时兼顾环境效益，实现力学性能与绿色性能的协同优化，硅灰、粉煤灰和矿渣粉的最佳掺量分别为10%、20%和20%。
Abstract: The effects of different cement types (P·O 42.5 grade cement, P·O 52.5 grade cement), silica fume contents (5%~20%), fly ash contents (10%~30%), and slag powder contents (10%~30%) on the compressive strength of ultra-high performance concrete(UHPC) were studied, and the environmental benefits of UHPC were explored by using the life cycle assessment(LCA) method. The results show that compared with P·O 42.5 grade cement, UHPC with P·O 52.5 grade cement has higher compressive strength. Adding appropriate content of mineral admixtures can effectively improve the compressive strength of UHPC, while also considering environmental benefits, achieving synergistic optimization of mechanical properties and green properties. The optimal contents of silica fume, fly ash, and slag powder are 10%, 20%, and 20%, respectively.
结论
（1）与42.5水泥相比，52.5水泥凭借其高CaO含量、低烧失量和高比表面积，显著促进了UHPC的早期水化反应，使UHPC的长龄期（3~180 d）抗压强度始终较高。
（2）随着硅灰掺量从5%增至20%，UHPC的各龄期抗压强度均先增后降，最佳掺量为10%。
（3）随着粉煤灰掺量从10%增至30%，UHPC的各龄期抗压强度均先增后降，最佳掺量为20%.
（4）随着矿渣粉掺量的增加，UHPC的早、中期抗压强度先增大后减小，后期抗压强度基本减小，最佳掺量为20%。
（5）合理选用水泥型号，并精细调控硅灰、粉煤灰、矿渣粉等矿物掺合料的掺量，不仅能够实现UHPC强度的优化，而且可兼顾绿色低碳目标。
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引用本文
王朴炎,张洁,周东杰,等.基于胶凝材料体系优化的超高性能混凝土(UHPC)的抗压强度与环境效益研究[J].混凝土与水泥制品,2026,53(3):7-12. WANG P Y,ZHANG J,ZHOU D J,et al.Research on the compressive strength and environmental benefits of ultra-high performance concrete (UHPC) based on optimization of cementitious material system[J].China Concrete and Cement Products,2026,53(3):7-12 (in Chinese).
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