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Concrete for preventing freezing and melting and its manufacturing method
Concrete for preventing freezing and melting and its manufacturing method
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机译：防止冻融和熔化的混凝土及其制造方法
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摘要
The present invention relates to concrete made of a composition used as a raw material for building construction or road pavement, etc. It contains a binder, coarse aggregate, fine aggregate, and water so that it can self-heal for surface or internal cracks that have already occurred while having high freeze-thaw resistance. contains 20-30 parts by weight of blast furnace slag and 15-25 parts by weight of fly ash with respect to 100 parts by weight of the binder, the particle size of the fine aggregate is 0.15 mm to 0.3 mm, and the ratio of fine aggregate to coarse aggregate is 55 to 60:40 to 45. In addition, the present invention may further include a crystalline organic compound selected from menthol, benzoic acid, and phthalic acid, and 0.3 to 1.0 parts by weight of an AE agent based on 100 parts by weight of the binder. The curing time can be reduced by curing the surface of the structure constructed with the concrete made of the composition by UV irradiation, and the internal structure is dense, so it can have resistance to external and internal environments.
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