Two-component nano sol type liquid hardening agent and preparation method thereof

Abstract

The invention relates to the technical field of building materials, and aims to provide a two-component nano sol type liquid hardening agent and a preparation method thereof. The liquid hardening agent consists of a component A solution and a component B solution; and the component A solution is formed by mixing a silicon tetrafluoride solution, silicon dioxide sol, a surfactant and distilled water, and the component B solution is formed by mixing pseudo-boehmite, ammonia water, a silane coupling agent and distilled water. The two single-component solutions do not generate internal reaction and can be stored for a long time. The components and the concrete can be subjected to irreversible chemical reaction, so that holes are filled and compacted, and are firmly filled to form an integral structure; and the product is simple in preparation process, pollution-free to the environment, simple in raw materials and low in cost, can be directly roll-coated or sprayed on the surface of concrete in a large area for construction, and is particularly suitable for large-scale industrial production.

Description

technical field [0001] The invention belongs to the field of building materials, and specifically relates to a two-component nano-sol type liquid hardener and a preparation method thereof. Background technique [0002] At present, the infrastructure and industrial plants that have been concreted have poor wear resistance and short service life. After long-term use, potholes, weathering, dust, sand, and peeling will appear on the surface; they can no longer meet the needs of modern production environments. In desperate need of a makeover. In order to solve this problem, many scholars have developed a variety of hardeners specially used for concrete floors in recent years, which can greatly increase its service life. [0003] At present, there are two types of ground hardener materials that are used most in the domestic and foreign markets: one is silicate products, such as CN200910055825 and CN201110083155. Lithium silicate, etc.) as the main component, and magnesium fluoro...

AI Technical Summary

Problems solved by technology

[0004] Although these formulas can effectively improve and enhance concrete hardness, wear resistance and other properties, they are all based on a single component to strengthen the hardened ground, and there is no product that uses two components together to synergistically strengthen the base surface.

The defect of single-component products is: since the addition is completed at one time during use, the subsequent reaction direction cannot be further changed according to the material reaction process and microstructure changes, so it is impossible to further improve concrete hardness, wear resistance and other properties on the basis of conventional levels

In addition, there are also nominally two-component hardeners, but they need to be mixed before use. In fact, they are also single-component for concrete and other base surfaces, and cannot react according to the concrete base surface. Changes in the situation adjust the amount of the last component material to achieve the effect of synergistic reinforcement and hardening of the base surface

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