A kind of spray type water-based inorganic gel waterproofing agent and preparation method thereof

Abstract

The invention belongs to the field of building materials, particularly relates to a spray type hydrophilic inorganic gel water-proofing agent and a preparation method thereof, and aims to provide a concrete water-proofing agent with superior water proofing performance. The soluble sodium silicate aqueous solution is used as a reactive active substance, and water is used as a diluting agent and is assisted by sodium hydroxide, a catalyst and a fluorocarbon surfactant with ultrahigh activity. The concrete water proofing agent has extremely high active substance content, moderate viscosity and extremely low surface tension, and thus has strong permeability and capability of closing micro-pores and micro-cracks on the surface and in the concrete; after the water-proofing agent is sprayed to the surface of the concrete, the tensile strength and the water proofing performance of the concrete can be obviously improved; meanwhile the water proofing agent has self-repairing performance and secondary impermeability by using the catalyst.

Description

technical field [0001] The invention belongs to the technical field of building waterproof materials, and in particular relates to a spraying water-based inorganic gel waterproofing agent and a preparation method thereof. Background technique [0002] Water and water-soluble carbon dioxide, chloride ions, sulfur dioxide and sulfates and other corrosive substances will corrode the steel bars inside the concrete after they enter the concrete, causing the degradation of the performance of the reinforced steel bars inside the concrete and affecting the service life of the building. In the past few decades, the degradation of concrete properties caused by the above reasons has become a problem that must be faced all over the world. A lot of resources are spent on the repair of leaking buildings, and the cost of repair sometimes even exceeds the initial construction investment. In my country, the leakage of buildings is particularly alarming and severe. It has been a problem that ...

AI Technical Summary

Problems solved by technology

However, the waterproof performance and price of the same type of sodium silicate aqueous solution-based waterproofing materials vary greatly due to different formulations. Depending on the surface tension, viscosity and gelation time, the resulting water repellents also vary in their ability to penetrate and seal pores and microcracks in concrete

Generally speaking, the existing sodium silicate-based sprayable inorganic gel concrete waterproofing agent has the following problems: the preparation process is complicated; reduced to an optimal value, thereby failing to make its water resistance substantially optimal

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