摘 要
高性能混凝土（HPC）因其优异的力学性能和耐久性，在现代土木工程中具有重要应用价值。为满足复杂工程环境对混凝土性能的高要求，本研究以优化高性能混凝土配合比设计为核心，系统探讨了其工作性能与组成材料之间的关系。研究基于矿物掺合料、减水剂及骨料特性等因素的影响，采用正交试验设计方法，结合响应面分析技术，建立了配合比参数与流动性、粘聚性及保水性等关键工作性能指标之间的数学模型。通过引入多目标优化算法，提出了适用于不同施工条件的高性能混凝土配合比设计方案。结果表明，粉煤灰与矿渣微粉的复掺能够显著改善混凝土的工作性能，且减水剂种类及其掺量对流动性的调控起着决定性作用。此外，骨料级配优化进一步提升了混凝土的抗离析能力。本研究的创新点在于将定量分析与智能优化方法相结合，实现了高性能混凝土配合比设计的精准化与高效化，为实际工程应用提供了理论支持和技术指导。研究表明，所设计的高性能混凝土在保证良好工作性能的同时，具备更高的经济性和环保性，为推动绿色建材发展奠定了基础。
关键词：高性能混凝土；配合比优化；工作性能
ABSTRACT
High-performance concrete (HPC), with its superior mechanical properties and durability, plays a significant role in modern civil engineering applications. To meet the high demands of complex engineering environments on concrete performance, this study focuses on the optimization of HPC mix proportion design and systematically investigates the relationship between workability and constituent materials. Based on the influences of mineral admixtures, water reducers, and aggregate characteristics, orthogonal experimental design combined with response surface analysis technology was employed to establish mathematical models linking mix parameters with key workability indicators such as fluidity, cohesiveness, and water retention. By incorporating multi-ob jective optimization algorithms, mix proportion designs for HPC suitable for various construction conditions were proposed. The results indicate that the combined use of fly ash and ground granulated blast-furnace slag significantly enhances the workability of concrete, while the type and dosage of water reducers play a decisive role in regulating fluidity. Furthermore, optimizing aggregate gradation improves the anti-segregation capability of concrete. The innovation of this study lies in integrating quantitative analysis with intelligent optimization methods, achieving precision and efficiency in HPC mix proportion design, thereby providing theoretical support and technical guidance for practical engineering applications. The study demonstrates that the designed HPC not only ensures excellent workability but also exhibits higher economic and environmental benefits, laying a foundation for promoting the development of green building materials.
Keywords: High Performance Concrete; Mix Proportion Optimization; Workability
目 录
摘 要 I
ABSTRACT II
第1章 绪论 1
1.1 高性能混凝土研究背景与意义 1
1.2 国内外研究现状分析 1
1.3 本文研究方法与技术路线 2
第2章 高性能混凝土配合比设计原理 3
2.1 配合比设计的基本原则 3
2.2 材料选择与性能要求 3
2.3 水胶比对强度的影响分析 4
2.4 矿物掺合料的作用机制 4
2.5 配合比优化方法探讨 5
第3章 高性能混凝土工作性能评价 6
3.1 工作性能的定义与影响因素 6
3.2 流动性测试与结果分析 6
3.3 黏聚性与抗离析能力评估 7
3.4 泌水率与保水性实验研究 7
3.5 工作性能综合评价体系 8
第4章 高性能混凝土应用性能验证 9
4.1 实验方案设计与实施 9
4.2 力学性能测试与数据分析 9
4.3 耐久性评价与改进措施 10
4.4 温度敏感性与收缩性能研究 10
4.5 应用案例分析与经验总结 11
结论 12
参考文献 13
致 谢 14
