Improving the corrosion and frost resistance of concrete by using supermolecular reactive agents,studied the effects of supermolecular reactive agents on the chloride ion migration coefficient of concrete,compressive strength corro-sion resistance coefficient and relative dynamic modulus of elasticity of concrete after freeze-thaw cycles,and the morphol-ogy of hydration products at different ages was observed through scanning electron microscopy.The results showed that the chloride ion migration coefficient of C40 concrete mixed with 2％supramolecular active agent decreased by 78.0％af-ter 28 days,the compressive strength and corrosion resistance coefficient of KS150 concrete increased by 32.1％,and the relative dynamic elastic modulus of F150 concrete increased by 85.7％.
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