混凝土孔隙结构与氯离子扩散性

here is a significant impact for a variety of physical and mechanical properties as a result of the pore characteristic. After making out the influence factors of concrete pore structure, we could take measures to reduce the porosity to improve the density of concrete and find right ways to improve the property of concrete material. It is significant for research on durability of concrete to find the relationship between the pore characteristics and the various unfavorable factors. In this study, the relationship between chloride diffusivity and pore characteristic, which include pore size distribution and connectivity of pores, was obtained. That is to say, a good correlation between the porosity and the diffusion coefficient of concrete has been determined and the total intrusion pore volume is linearly related to the diffusion coefficient of concrete, both of which were proven right.