本文进行了砼在3.5%盐溶液中快速冻融的实验研究,结果表明,盐溶液对砼抗冻性的影响具有双重性,盐溶液使砼试件表面饱和程度的提高导致严重剥落,重量损失大幅度增加,溶液降低冰点的作用使砼內部破坏程度较小,相对动弹性模量下降略为缓慢。 In this paper, an experimental study on rapid freezing and thawing of concrete in 3.5% salt solution was carried out. The results show that the effect of salt solution on the frost resistance of concrete has duality. The salt solution causes the surface saturation of the concrete specimen to increase, resulting in severe spalling and weight loss A substantial increase in the role of the solution to reduce the freezing point of the internal concrete less damage, the relative dynamic elastic modulus decreased slightly slow.