Water-resistant salt-resistant concrete protecting agent and preparation method thereof

Abstract

The invention relates to a water-resistant salt-resistant concrete protecting agent and a preparation method thereof. The protecting agent comprises the following components, by weight, 35-40 parts of silicon powder, 10-15 parts of heavy calcium carbonate, 0.1-0.5 parts of titanium dioxide, 0.1-0.5 parts of carbon black powder, 8-15 parts of aluminum metasilicate, 0.05-0.2 parts of organic silicon, 0.1-0.2 parts of hydroxypropylmethyl cellulose, and 20-25 parts of an additive resin. According to the preparation method, the additive resin is put in a reactor and is prepared into a solution; the solution is uniformly stirred; aluminum metasilicate, titanium dioxide, the carbon black powder and hydroxypropylmethyl cellulose are slowly added to the reactor and are slaked; and heavy calcium carbonate, the silicon powder and organic silicon are added and are stirred to obtain the protecting agent. Compared with concrete protecting agents prepared with the prior art, the water-resistant salt-resistant concrete protecting agent of the invention, which is painted on the base surface of the whole concrete, allows beam bodies to be well sealed and the concrete to possess various corrosion resistances of the water resistance, the salt resistance and the like, so the concrete durability is improved.

Description

technical field [0001] The invention relates to a waterproof and salt-proof protective agent for concrete and a preparation method thereof, in particular to a waterproof and salt-proof protective agent for concrete and a preparation method thereof. Background technique [0002] The main core idea of ​​reinforced concrete curing is to prolong its durability. In the process of prolonging the durability of concrete, in addition to the necessary rust removal of steel bars, base surface cleaning and base surface repair, there is the last and most important process - surface protection - which is the first step in judging the quality of repair and reinforcement A checkpoint. As we all know, because reinforced concrete structures are exposed to the atmosphere for a long time, that is, affected by air and water vapor, no matter how clean the original expanded, loose, peeled, and corroded concrete is cleaned, the rust on the surface of the steel bar will be removed. How thorough it...

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Problems solved by technology

Therefore, in addition to the basic physical cleaning, it is also necessary to consider the long-term impact of the slow chemical reaction on the entire reinforced concrete structure, and even the simplest surface waterproof function, otherwise the corrosion of the concrete will not be cured, and it will not only waste engineering costs. Not to mention some manpower and material resources, it also poses a hidden danger to the long-term stability and safety of reinforced concrete structures.

[0003] Although there are similar concrete protection materials on the market today, on the one hand, most of them are organic matter and have a short lifespan. On the other hand, their anti-salt damage function is almost ineffective in harsh environments, such as Northeast China and Northwest China such as Xinjiang.

It is imminent to develop materials in China that have a long service life, are less affected by geographical and atmospheric environments, and have significant waterproof and salt-proof functions. Otherwise, the durability of the entire concrete curing market will be difficult to further improve.