在高强混凝土中使用的矿物掺合料的水化条件有两个突出特点：水胶比低、早期水化温度高。目前绝大部分关于矿物掺合料作用机理的研究采用了比较大的水胶比和标准养护条件（20℃），由此得出的结论并不适用于高强混凝土。此外，众多针对矿物掺合料作用机理的研究采用的研究对象是净浆和砂浆，而矿物掺合料在净浆、砂浆和混凝土中的作用机理是有差异的。本项目基于高强混凝土的特点设置相应的水化硬化环境条件，探索比较精确地测定矿物掺合料反应程度的方法，综合分析矿物掺合料在高强混凝土中所起的化学作用、物理填充作用；以及这些作用对水泥的水化过程、混凝土的孔和过渡区结构的影响，并将矿物掺合料所起的作用直接与高强混凝土的宏观性能演变相联系，从中总结归纳出矿物掺合料在高强混凝土中的作用机理。为如何科学、高效地在高强混凝土中利用矿物掺合料提供建议。

There are two distinctive characteristics for the hydration condition of mineral admixture used in high strength concrete: low water-to-binder ratio and high hydration temperature at early age. At present, high water-to-binder ratio and standard curing condition (20℃) are generally used for the research on the mechanism of mineral admixture's effect. The conclusions drawn from these researches are not effective in the case of high strength concrete. In addition, paste and mortar are normally used as the research object in the study of the mechanism of mineral admixture's effect. However, there are differences among the mechanisms of mineral admixture's effect in paste, mortar, and concrete. In this project, the hydration and hardening condition is set based on the characteristics of high strength concrete. A more accurate method to determine the reaction degree of mineral admixture is supposed to be developed. The chemical effect and physical filling effect of mineral admixture on the high strength concrete, and their influence on the hydration process of cement and the pore structure and transition zone of concrete will be analyzed comprehensively. Then the mechanism of mineral admixture's effect on the high strength concrete will be concluded from the relationship between its effects and performance of high strength concrete. Some suggestions on how to scientifically and efficiently apply mineral admixture to high strength concrete will be put forward.