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硅酸盐水泥硬化后在某些腐蚀性介质作用下,会逐渐受到侵害、性能改变,强度降低,严重时会引起整个工程结构的破坏,腐蚀足一个相当复杂的过程。引起水泥石破坏的主要原因有以下几种。一、软水侵蚀(溶出性侵蚀)软水能使水泥水化产物的氢氧化钙溶解,并促使水泥石中其他水化产物发生分解,强度下降。故软水侵蚀称为溶出性侵蚀。
Portland cement hardened in some corrosive medium under the action, will gradually be infringed, performance changes, the intensity decreased, serious will cause the destruction of the entire project structure, corrosion is a very complex process. The main causes of cement damage are the following. First, the soft water erosion (eroded erosion) soft water cement hydration products can dissolve the calcium hydroxide, and to promote other hydration products in cement stones decomposition, the intensity decreased. So soft water erosion is called erosive erosion.