Abstract: Air-entraining agent is one of the commonly used concrete admixtures. Many literatures indicate that adding air-entraining agent can not only improve the workability of concrete, but also improve the durability of concrete and increase the service life of concrete, especially in the erosion In a freeze-thaw environment. In this paper, the chloride ion permeability index and concrete frost resistance index of concrete with air-entraining agent were tested. The results show that the air-entraining agent can effectively improve the durability of concrete. Keywords: air-entraining agent; durability; permeability; frost resistance
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