Strength theory for pore structure of cement based and other solid porous materials

摘要

According to fundamental assumption of Hansen model, this paper sets up a theoretical model for distributive ellipsoidal pores of cement based and other solid porous materials, derives the formula of strength theory for pore structure of solid porous materials. First, in theory, poroves that strength of cement based and other solid porous materials depends on these characteristics, e.g. porosity P, pore-size distribution P_i/P_, pore shape K_(1i), K_(2i), pore direction alpha_i, etc.. Morever, based on description of practical materials by using simplified the oretical model of distributive ellipsoidal pores, this paper counts that theoretical relational curved surface of strength and pore structure, which perfectly corresponds to measured relational curve of strength and porosity of common metal and metalloid materials.