基于改进的CEMHYD3D模型模拟水泥水化微结构演变过程

Simulation of Cement Hydration Microstructure Evolution Process Based on Improved CEMHYD3D Model

将二维与三维不规则颗粒的重构方法引入到CEMHYD3D模型之中,提出了改进的CEMHYD3D水化模型.利用该模型,分别对水泥基材料的水化进程、水化放热量、C-S-H含量、CH含量、孔隙率和孔隙连通度进行了模拟与验证.通过与实测数据(各组分含量、孔隙率、水化放热信息等)进行对比,验证了改进的水化模型具有较高的精度.

Combined with the reconstruction method of 2D and 3D irregular particles,this method is introduced into the CEMHYD3D model.The hydration process,hydration heat,C-S-H content,CH content,porosity and pore connectivity were simulated and verified respectively.The results show that compared with the experimental data of components(each component content,porosity,hydration heat release information),the perfected paste hydration model is verified of higher precision.