High-efficiency water-reducing agent, retarding water-reducing agent, concrete high-efficiency water-reducing agent

1. Product content
FDN high-efficiency water-reducing agent belongs to the naphthalene series. This product is a non-air-entraining water-reducing agent. It has a strong dispersion effect on cement and good dispersion and water reduction enhancement on concrete. It can greatly improve and improve various properties of concrete, and is used to prepare high-performance concrete and ready-mixed concrete with high fluidity, high strength, and high impermeability.

II. Main technical functions:
1. This product is brown powder (the aqueous agent is brown liquid). The product is non-toxic, odorless, non-flammable and has no rust on steel bars.
2. It has significant water reduction and dispersion effect, and the water reduction rate is as high as 25% or more.

3. Economic and technical effects
1. Improve workability: When keeping the concrete mix ratio unchanged, add 0.5-1.0% powder or 1.5-3.0% water agent (accounting for the weight of cement) ), FDN high-efficiency superplasticizer can increase the slump of the mixture by 10-20cm, reduce bleeding, improve segregation resistance, and greatly improve the concrete construction performance.
2. Improve strength: Use the same amount of cement to maintain similar workability. Add 0.5-1.0% powder and 1.5-3.0% water agent (accounting for the weight of cement). FDN high-efficiency water-reducing agent can make concrete at all ages Significant improvement in strength. At the same time, the compressive strength and flexural strength of concrete increase accordingly. Adding 1.0-1.5% powder, FDN superplasticizer can be formulated to pump C60-C80 high-strength and high-fluid concrete.
3. Reduce water use: When the concrete slump is similar, adding FDN high-efficiency water-reducing agent can greatly reduce the concrete mixing water. When the amount of powder is 0.5-1.5%, the water reduction rate can reach 12-25%, and high-strength and high-fluid concrete can be prepared.
4. Save cement: When the slump of the concrete mixture remains unchanged and the strength of the hardened concrete is similar at each age. Adding FDN high-efficiency water-reducing agent to concrete can save 10-20% of cement consumption and produce significant economic benefits.
5. Improve durability: After adding FDN high-efficiency water-reducing agent to concrete, it can not only improve the workability of the mixture, but also significantly reduce the water-cement ratio, improve the internal structure of the hardened concrete, and make the concrete more durable. Durable properties such as penetration, frost resistance, chemical corrosion resistance and rust resistance have been significantly improved.
IV. How to use:
1. Adaptability: FDN superplasticizer is suitable for the five major cements. Other types of cement need to undergo relevant tests before use.
2. Dosage: For ordinary concrete C20-C50, the dosage is 0.5-1.0% (powder) or 1.0-2.0% (water agent) of the cement weight; for high-strength concrete C60 Above, the dosage is 1.0-1.5% (powder) or 2.0-3.0% (water).
3. Usage: FDN high-efficiency water reducing agent products are available in powder and liquid forms. When using powder, it can be directly added to the concrete mixture. When using it, attention should be paid to even mixing. If conditions permit, the “post-infiltration method” will be better. Liquids can be directly added to the concrete mixture according to a certain concentration. But be sure to measure correctly.

5. Main uses: This product is suitable for pumping concrete, commercial concrete, fluid concrete, bridges, road concrete, early strength, high strength concrete, large volume concrete, etc.

VI. Packaging and storage:
1. FDN superplasticizer powder is packed in woven bags (lined with plastic film), each bag is 25kg±0.25kg and 230kg±2kg; for water agent Plastic barrel packaging.
2. FDN superplasticizer powder should be stored dry to prevent moisture or impurity contamination. If the powder absorbs moisture, it will agglomerate, but it will not affect its performance.
3. FDN high-efficiency water-reducing agent is non-toxic, non-corrosive, non-flammable, and has a storage period of two years.

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