Production method of concrete shrinkage-reducing, crack-reducing, water-reducing and waterproofing dense agent

This technology involves a concrete that can be widely used for waterproofing and anti-seepage in basements, swimming pools, ditches, tunnels, cable trench projects of high-rise buildings, and building structures and civil structures. Shrinkage-reducing, crack-reducing, water-reducing and waterproof densifier. After using this product, there is no need to do other waterproofing procedures. The concrete is poured into shape in one go.

There are currently many types of waterproof products in our country. There are inorganic salt waterproofing agents and organic waterproofing agents. Inorganic salt waterproofing agents may not only corrode steel bars, but also have poor waterproofing effects in the future; organic waterproofing agents have an air-entraining effect and have a negative impact on the strength of concrete. In engineering applications, most waterproofing agents will increase shrinkage, and excessive shrinkage is one of the main reasons for concrete cracking. In terms of physical state, the current products are available in powdery and liquid forms, but most of them are powdery products. The dosage of this product is high, generally around 5%, and some are as high as 8%-10%.

In view of the shortcomings of the above-mentioned existing technologies, the purpose of this technology is to provide a method that significantly improves impermeability, shrinkage reduction, crack resistance, and water reduction rate. It is a concrete shrinkage-reducing, crack-reducing, water-reducing and waterproof densifier that has a large, waterproof and dense effect. It only needs to be added to the concrete without adding admixtures multiple times. The product is liquid, easy to add, low in alkalinity, non-corrosive, non-flammable and non-toxic.

The production method of the concrete shrinkage-reducing, crack-reducing, water-reducing and waterproof dense agent described in this technology is to first put ferric chloride into water and stir it Completely dissolve it in water, let it cool naturally, then add sodium gluconate and sucrose, then add high-performance polycarboxylate water-reducing agent, mix evenly, put it into the finished product packaging tank, inspect the packaging, and get the product.

The beneficial effects of this technology's concrete shrinkage-reducing, crack-reducing, water-reducing and waterproofing densifier:

1. It can significantly improve the effects of impermeability, shrinkage reduction, crack resistance, large water reduction rate, waterproofness and compactness. You only need to add this product to concrete without adding other admixtures multiple times. The product is liquid and easy to add, which can effectively prevent the penetration of water molecules and significantly improve the strength. The impermeability level reaches level 12, which can make the concrete particles bond more closely and form a package to achieve impermeability and reduce shrinkage by more than 30%, especially in In harsh environments, shrinkage can be reduced, which is extremely important for effectively controlling cracking; the dosage can be increased or decreased according to requirements.

2. According to different grades of concrete and different slump requirements, the recommended dosage of this product is 0.21%-0.22% of the cementitious material, and the tested dosage is 0.21% of cementitious materials. It is a composite product with multiple functions.

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