The results indicate that reactive ingredient of the paint penetrated into the internal part of concrete reacts with cement matrix to produce insoluble needle-likecrystal.
结果表明，涂料的活性化学物质渗透进入混凝土内部，与混凝土基体发生化学作用生成不溶针状晶体。
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The paper also analyzed the crystal defeat formed in the process of growth and put forward to the solution, furthermore, the mechanism of needle - like growth was discussed.