The conclusion that the unsaturation diffusion theory can be used to explain Cl(superscript -) invaded into concrete has been drawn.The suggestions to solve the key questions have been given.

• 最终得出多孔材料的非饱和扩散理论对于研究氯离子入侵混凝土能够提供更好的数学基础的结论，同时提出了解决关键问题的思路和方法。