Silicate-formate-based organic/inorganic composite composition and concrete composition containing same
A technology of inorganic composite and salt compounds, applied in the direction of solid waste management, sustainable waste treatment, climate sustainability, etc., can solve the problems of uneconomical, harmful to the environment, etc., achieve the effect of inhibiting shrinkage and improving anti-permeability
Active Publication Date: 2012-07-04
POSCO ENG & CONSTR +1
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Problems solved by technology
[0007] In addition, in order to prevent salt damage and corrosion deterioration of coastal concrete structures, and to restore the performance of deteriorated concrete, various methods such as electrical methods and surface coating methods have been proposed. Although these methods block harmful substances The effect is good, but there are problems such as uneconomical, harmful to the environment, and repeated maintenance and construction are required.
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[0024] The silicate-formate organic-inorganic composite composition of the present invention can inhibit shrinkage cracking by improving the shrinkage resistance of concrete, and reduce free chloride ions by chemically immobilizing chloride ions and sulfate ions that penetrate into concrete and the concentration of sulfate ions. This can reduce the diffusion coefficient and penetration depth of chloride ions and sulfate ions in concrete, and form a protective layer on the surface of steel bars to effectively inhibit the penetration of chloride ions and sulfate ions. In addition, it is possible to prevent the above-mentioned permeation of chloride ions and sulfate ions, thereby improving the corrosion resistance of reinforcement inside the concrete.
[0025] Next, the present invention will be described in detail.
[0026] The invention provides a silicate-formate organic-inorganic composite composition, the silicate-formate organic-inorganic composite composition comprises 30...
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The present invention relates to a silicate-formate-based organic / inorganic composite composition capable of being used in a coastal concrete structure constructed on the coast and the coastal reclaimed land, and a concrete composition by applying the same, and more specifically, to a silicate-formate-based organic / inorganic composite composition capable of inhibiting the shrinkage of a concrete structure and enhancing the resistance against the penetration of chloride ions and sulfate ions and the corrosion resistance of an iron bar, and a concrete composition by applying the same. If the silicate-formate-based organic / inorganic composite composition of the present invention is applied, the shrinkage of a coastal concrete structure constructed on the coast and the coastal reclaimed land can be suppressed, and the resistance against the penetration of chloride ions and sulfate ions and the corrosion resistance of an iron bar can be enhanced.
Description
technical field [0001] The present invention relates to a silicate-formate organic-inorganic composite composition that can be used for coastal concrete structures constructed on the coast and coastal filling land, and a concrete composition (Silicate-Formate Complex Composition and Concrete Composition Containing the Same), in more detail, relates to a silicate-formate organic-inorganic composite capable of inhibiting the shrinkage of concrete structures, improving the penetration resistance of chloride and sulfate ions, and the corrosion resistance of steel bars Composition and concrete composition suitable for the composition. Background technique [0002] Concrete used in coastal concrete structures is subject to shrinkage stress due to self-shrinkage, drying shrinkage, etc., resulting in a high risk of concrete cracking, and exposure to humid environments due to salt damage caused by seawater and the special environment of the coast. Concrete is corroded by chloride io...
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Patent Timeline
Login to View More IPC IPC(8): C04B24/04C04B28/08
CPCC04B2111/24C04B2111/26C04B28/04Y02W30/91C04B18/08C04B18/141C04B22/126C04B24/04C04B24/16C04B24/2641
Inventor 金贤培李锺寅金祐材吉培秀金度洙朴龙洵姜龙植
Owner POSCO ENG & CONSTR