Several groups of permeable waterproofing agents were prepared in this paper,the resistance to chloride ion absorption,drying factor and water absorption ratio of concrete are verified.The results show that permeable waterproofing agent has significant effect on chloride corrosion resistance and freeze-thaw resistance of concrete;The anti-chloride ion absorption reduction rate of the penetration group is as high as 97.6％,and the chloride corrosion resistance is excellent;The dryness coefficient of the penetration group is 51.9％,which is conducive to the volatilization of more water from the concrete;The water absorption of concrete treated with permeable waterproofing agent is only 5.64％,and the waterproof effect is remarkable,which can improve the waterproof performance of concrete in the outdoor test section of saline soil area.
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