The correlation between microstructure and macroscopic properties of cement and concrete materials is the focus and difficulty of teaching Civil Engineering Materials courses.Currently,the observation experiment of material microstructure has problems such as expensive equipment,limited offline teaching resources,difficult sample preparation,etc.It is difficult to carry out offline experimental teaching for undergraduate teaching,which leads to students'lack of in-depth understanding of the microstructure of materials and the relationship between the microstructure and macroscopic properties.Based on this,we develop electron microscope virtual simulation microstructure experimental platform,design consolidation of theoretical knowledge and training of practical ability of the virtual observation of the experimental projects.Through the comparison of the macro performance of the material and the microstructure,wehelp students more in-depth understanding of the characteristics of the cementitious materials,the establishment of the knowledge system,to improve the quality of undergraduate personnel training and practical innovation ability.
experimental teachingvirtual simulationmicrostructure observationcement concreteknowledge system