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Detailed description of the ingredients and penetration principle of water repellent
2024-08-26
Waterproofing agents are made with a variety of ingredients and ingredients, but if you are not really aware of these things, you will not know which ingredients, so let's introduce them below.
First, the classification of waterproofing agent
Liquid waterproofing agent: commercially available inorganic aluminum salt waterproofing agent, silicone waterproofing agent, ferric chloride waterproofing agent, M1500 cement sealing waterproofing agent, fatty acid waterproofing agent, Wuyi waterproofing agent, etc. are all liquid waterproofing agents
Powder waterproofing agent: penetrating crystalline waterproofing agent, waterproof and moisture-proof powder, expansion waterproofing agent, etc.
Second, the composition and ingredients of various liquid waterproofing agents
1. Inorganic aluminum salt waterproofing agent, which is a liquid waterproof material composed of calcium, metal aluminum salt, iron salt, hydrochloric acid, water and the like. It is suitable for waterproofing and plugging of construction projects. It has the advantages of low cost, non-toxicity, no pollution, good stability, long service life and convenient construction. It is a new type of waterproofing agent at home and abroad with development prospects. It is also an important waterproof material for developing the roof breeding industry and beautifying the urban environment.
2, silicone waterproofing agent, is a product with a silane chain that can be sprayed and blended with mortar. This product is generally used for spray protection of external wall penetration, and can also be used for painting walls after dilution with water. The material is formed by heating using a monomethylsilane and a nonionic emulsifier, and the entire production process is free from waste water and the like.
3. Ferric chloride waterproofing agent, the waterproofing agent is mainly produced by cold mixing and static release of materials such as iron oxide and hydrochloric acid, and the finished product presents a purple-red color. The product after the reaction has a slight smell, because of environmental protection reasons, this product Not recommended for production or use
4, M1500 cement seal waterproofing agent, is mainly composed of silicates, plus active catalyst, penetrant, complexing agent and other additives by cold mixing method, and then allowed to stand for 24 hours to filter. This material is an inorganic material that fills the pores of the cement and blocks the leaking channels. It is a green material.
5. Fatty acid waterproofing agent, which is heated and activated by fatty acid. The fatty acid material reacts with calcium silicate, magnesium dioxide and the like in cement to form fatty acid calcium, fatty acid magnesium, etc., and fatty acid calcium and fatty acid are formed. Magnesium blocks the pores of cement concrete to achieve waterproofing.
Third, the ingredients and ingredients of various powder waterproofing agents
1. Infiltrated crystal waterproofing agent is made up of alkali metal, catalyst, complexing agent, etc., and the composition will be combined with calcium hydroxide, calcium ion, magnesium hydroxide and aluminum hydroxide in cement. The needle-like dendritic crystals are filled with capillary pores to improve the compactness of the cement mortar and improve the impermeability level. These crystals also produce new crystal-filled leaks when they are exposed to water in the second time.
2, waterproof and moisture-proof powder, mainly made of calcium sulphoaluminate, active slag and other substances through the mixer evenly stirred, and after the cement mortar, will be part of the cement that does not participate in the hydration reaction, so that the cement is fully obtained Hydration
3, expansion waterproofing agent, mainly composed of calcium sulfate, active slag, etc., is made by mixing with a dry powder mixer, generally used in the parts that need to be expanded, and will play a certain role of micro-expansion after the action of cement. Therefore, the capillary pores of the cement are filled to have an anti-seepage effect.
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