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混凝土的渗透性取决于许多因素。这些因素可以分为两类:第一类包括混凝土混合物各组分的特征,混凝土的配合比以及混合物制备、成型和混凝土硬化的各种工艺参数;第二类包括混凝土在外部介质(湿度、侵蚀性介质的存在、风化作用等),结构中的应力以及流体性质(粘滞性、极性等)和流体的流动条件(压差、浓度、湿度、含水率、压差变化速度等)等各种因素影响下,
The permeability of concrete depends on many factors. These factors can be divided into two categories: the first category includes the characteristics of the components of the concrete mixture, the mix ratio of the concrete and various process parameters for the preparation, molding and hardening of the mixture; the second category includes the concrete in the external medium (humidity, erosion The existence of a medium, weathering, etc.), stress in the structure, fluid properties (viscosity, polarity, etc.), and fluid flow conditions (differential pressure, concentration, humidity, moisture content, differential pressure variation rate, etc.) Under the influence of various factors,