CEMENT CONCRETE COMPOSITE WITH HIGH PERFORMANCE AND SELF-REPAIRING AND REPAIR METHOD FOR CONCRETE STRUCTURE USING THE COMPOSITE

摘要

The present invention relates to a cement concrete composition with high performance, comprising 5 to 45 wt% of a binding material, 20 to 75 wt% of fine aggregate, 15 to 60 wt% of coarse aggregate, and 0.1 to 20 wt% of water, and to a method for maintenance and improvement of durability of concrete structures using the same. According to the present invention, it is possible to construct sealed concrete by promoting reduction of cement hydration heat, initial hydration of cement, and densification of tissues of concrete by using the binding material, thereby having effects of preventing surface cracks and an expansion failure phenomenon of the concrete and improving self-repairing properties, strength expression and durability for a long period of time, specifically, alkali resistance, sea-induced damage resistance, and freezing and thawing resistance. Also, while satisfying various properties required for pavement, that are watertightness, attachment properties, durability, crack resistance, and the like, it is possible to use a method for producing and constructing materials, which is generally used, thereby having excellent economic properties and construction properties.