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混凝土的抗渗性能是混凝土材料的重要物理性能之一,混凝土的渗透性决定混凝土可能被水饱和的难易程度,会直接影响混凝土的抗冻性,进而引起钢筋的锈蚀,影响钢筋混凝土结构的质量,因此它对地下建筑、地下构筑物、水工结构等有密切关系。同样,对真空脱水混凝土来说,也应满足抗渗性能的要求。混凝土是毛细孔多孔体,因此混凝土的抗渗性主要取决干混凝土内部的孔隙结
The impermeability of concrete is one of the important physical properties of concrete materials. The permeability of concrete determines the degree of difficulty that the concrete may be saturated with water, and will directly affect the frost resistance of the concrete, which in turn causes corrosion of the reinforcement and affects the structure of the reinforced concrete. Quality, therefore, it is closely related to underground buildings, underground structures, hydraulic structures, etc. Similarly, for vacuum dewatered concrete, the impermeability requirements should also be met. Concrete is a pore-porous body, so the impermeability of the concrete depends mainly on the internal porosity of the dry concrete