关键词: 复合防水剂;混凝土;电通量;抗盐冻性能

Abstract: The orthogonal text was applied to optimize the recipe of compoud repeling agent.Meanwhile,the effects of compoud repeling agent on the workability,compressive strength,and freeze-deicing salt resistance were studied.The result indicates that the admixture leaded a positive feedback on workability,the dosage of water can be reduced by 10 kg/m3.Compared with the original recipe,the strength can be increased in each age,the 28 d and 56 d strength can be reached 110.0％and 122.1％,respectively.The 56 d coulomb electric flux can be reduced by 50.6％compared to the benchmark.The number of salt frost cycles can be increased 180 times compared with the baseline,and the lowest mass loss rate is 3.9％.

Key words: compoud repeling agent;concrete;coulomb electric flux;salt frost resistance