Chenging Wu;Michikazu Tawara;Doyeon Kwak;Shigeyoshi Nagataki;Eiji Iwatsuki;
<正>In order to improve the durability of concrete structure,the cases where curing agent or surface modification agent be applied on the concrete surface after de-molding has increased.In this research,the curing effect and the durability improvement effect were investigated by experiments about the commercial curing agent,water absorption inhibitor,surface modification agent,and the durability improvement curing agent that has be newly developed.The durability improvement curing agent not only has curing effect but also is able to improve the durability of concrete.According to the results of the experiments,it is clearly that the durability improvement curing agent has the curing effect such as reducing evaporation of water in concrete and increasing strength of concrete,and durability improvement effect such as reducing the drying shrinkage of concrete,waterproof,carbonation resistance,and chloride ion permeation resistance. According to these effects,it is possible to improve the durability of concrete structure by applying the durability improvement curing agent on the surface of concrete. Oiginality In this paper,it is introduced that the effect of a new type curing agent developed by the authors on strength and durability of concrete.According to the results of experiments, it is evidenced that the new curing agent not only has better curing effect and also is able to improve the durability of concrete comparing with some commercial curing agent,water absorption inhibitor and surface modification agent.
Concrete;;Curing agent;;Curing effect;;Durability improvement effect
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