Protective agent for improving durability and apparent mass permeability of hydraulic concrete

The invention relates to a protective agent for improving durability and apparent mass permeability of hydraulic concrete. The protective agent is characterized by comprising a base plane correction material interfacial agent, a color difference adjusting agent, waterproof priming paint and finish-coat paint. The protective agent disclosed by the invention has the excellent effects that according to the experimental study and engineering practice, after the protective agent disclosed by the invention is used, chloride ions and acidic and alkaline chemical media can be effectively prevented from permeating into the concrete, damage of erosion molecules on the concrete and internal steel bars thereof is avoided, and the damage of illumination, ultraviolet radiation, alternative high/low-temperature and alternative dry and wet on the concrete is delayed.