为指导工业废渣在水泥基材料中大掺量、资源化利用及对水泥基材料性能的控制，并避免纯实验研究的繁重工作量与其研究结论的非系统性，以及纯计算机模拟所得结论的不可靠性，课题拟结合实验研究与计算机仿真，运用渗流理论研究含大掺量矿物掺合料的复合胶凝材料浆体微结构演化与宏观行为等科学问题。通过研究复合胶凝材料各组分水化进程及反应机理，阐明复合胶凝材料体系水化机制；对复合胶凝材料颗粒空间分布特征进行三维重构，运用元胞自动机算法描述其水化机制，对水化动力学进行模拟；分析复合胶凝材料组成及外部条件对实际和模拟浆体结构的相渗流特征的影响，研究相渗流结构与宏观性能的关联性，并根据关联性对模拟结构的宏观性能进行分析计算，构建基于结构表征与性能预测的复合胶凝材料水化数值模型；通过模型反演，按相关性能要求对水泥基材料相渗流结构进行调控，对胶凝组分进行配伍，实现按性能设计复合胶凝材料组分的目的，并对模型进行验证及优化。

In order to guide the resource utilization of high-content industrial residues in cement-based materials and control the performance of cement-based materials, to avoid heavy workload and non-systematicness of pure experimental study, and also to avoid unreliability of pure computer simulation, experimental study will be combined with computer simulation in this project. Meanwhile, by the petcolation theory, the microstructural evolution and macroscopic behavior of composite cementitious materials mixed with high-content mineral admixtures will be studied. By researching the hydration process and reaction mechanism of different compositions in composite cementitious materials, the hydration mechanism of composite cementitious materials can be clarified. Three-dimensional image reconstruction will be used for analyzing the spatial distribution features of composite cementitious material particles, and cellular automata algorithm for describing the hydration mechanism of composite cementitious materials, so as to simulate the kinetics of hydration process. The effect of internal compositions and external environment conditions of composite cementitious materials on percolation characteristics of actual and simulated slurry structure will be analyzed. Furthermore, the correlation between percolation structure and macroscopic properties will be studied. According to the correlation, macroscopic properties of simulated structure will be analyzed and calculated, so as to build the hydration digital model of composite cementitious material based on structure characterization and performance prediction. Finally, by inverting this model and regulating the percolation structure of cement-based materials according to specific performance requirements, the composition of cementitious materials can be designed, and the aim of designing compositions of composite cementitious material based on performance can come true. Then, by experimental verification, the parameters and algorithm of the model can are optimized.