Penetrating type liquid hardening agent and preparation method thereof

Abstract

The invention discloses a penetrating type liquid hardening agent and a preparation method thereof. The penetrating type liquid hardening agent comprises the following components in percentage by weight: 30 to 70 percent of water, 0.5 to 2.0 percent of complexing components, 0.4 to 1.0 percent of a promoting component, 20 to 60 percent of a lithium silicate solution, 2 to 8 percent of a penetration-resistant agent and 0.02 to 0.1 percent of a surfactant. According to the penetrating type liquid hardening agent, the gelatinization time of the hardening agent is prolonged by adopting an ionic complex method, so that the hardening agent can penetrate deeply into the surface of concrete and generate more thorough reaction with calcium ions. The penetrating type liquid hardening agent is a strongly alkaline solution and can greatly reduce the water absorption amount of the surface after being brushed on the surface of the concrete, thus enhancing the wear resistance of the surface of the concrete. The penetrating type liquid hardening agent does not contain VOC, belongs to an environment-friendly product and can be used for enhancing indoor and outdoor concrete surfaces.

Description

technical field [0001] The invention relates to a hardener and a preparation method thereof, in particular to a permeable liquid hardener and a preparation method thereof, belonging to the technical field of building materials. Background technique [0002] Concrete admixture is an indispensable and important part of concrete. With the rapid development of the construction industry, commercial concrete has emerged as the times require. This kind of concrete is concentrated and mixed, and transported to the construction site for long-distance pouring. It has high efficiency and guaranteed performance. Secondly, it saves energy. , environment-friendly, the state compiled the "Concrete Pumping Construction Technical Regulations" standard to guide the healthy development of commercial concrete. [0003] Cement and water have a very complex chemical reaction to form hard hydrates, which cement the aggregates filled in it together to form a structure with high compressive strength...

AI Technical Summary

Problems solved by technology

[0004] There are three generations of products in the existing market: the first generation is a sodium-based product, which can improve the strength and wear resistance of concrete to a limited extent. Very common, its performance is slightly improved compared to sodium-based, but not very obvious, and the possibility of replacement is very small; the third generation is lithium-based products, the performance is better than the previous two generations, but there are few types of products, only Produced by a few companies, resulting in high prices, generally only used in high-end engineering fields such as airports, water conservancy, and ports

[0005] At the same time, the existing hardeners use alcohol compounds to improve the stability of the hardener and the early hydration effect of the cement; and the silicate ions in it react rapidly with calcium ions to form crystals and block the capillary pores, so that the silicate ions cannot penetrate deeper. Penetrating into the concrete, the use effect is poor, and the concrete strength is weak, and the surface properties such as water resistance and wear resistance are not good.

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