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low concentration snf-c 25kg bag,free sample sodium naphthalene sulphonate for concrete admixture
Sodium Naphthalene Sulfonate Formaldehyde Condensate/CAS NO.:36290-04-7
1.Sodium Naphthalene Sulfonate Formaldehyde Condensate
2.High water reducing agent
3.solid content:92% Min
4.Low dosage
MODEL ITEM | Naphthalene superplasticizer | |
Criteria | Actual results | |
Solid Content, % | 92 min | 93.38 |
Moisture, % | 8.0max | 7.1 |
Fineness (0.315mm remains), % | 15max | 8 |
PH value | 7 -9 | 8.62 |
Sodium Sulfate Content, % | 18max. | 16.5 |
Chloride Content, % | 1.0 max. | 0.11 |
Surface Tension | 68-72 Mn/m | 71 |
Cement Flowing Rate | 240mm min | 265mm |
Water Reducing Rate, % | 20 min | 21.5 |
Steel-bar Corrosion | None | None |
1. Efficient water reduction. The water reduction rate is more than 25%. Superplasticization can effectively increase the fluidity of concrete and reduce bleeding and segregation, so as to improve the workability of concrete, facilitate construction and compaction.
2. Good enhancement effect. Under the same dosage of cementitious materials, the 1D, 3D, 7d and 28d compressive strength of concrete mixed with superplasticizer can be increased by 50 ~ 110%, 40 ~ 90%, 40 ~ 70% and 20 ~ 40% compared with the reference concrete in the same period.
3. The product has strong adaptability, and the product is suitable for cement of various specifications and models. The product has good compatibility with other admixtures. It is matched with admixtures such as expansion agent, air entraining agent and active admixtures such as fly ash, and its functions complement and stimulate each other.
4. The setting time is appropriate. The product has little effect on the initial and final setting time of cement, and the setting time difference is generally within 1h.
5. The sodium sulfate content of the product is low, and the prepared liquid has no crystallization in winter, which solves the problem of pipe blockage caused by sodium sulfate crystallization in winter concrete manufacturing, and provides convenience for concrete construction in winter; After compounding with retarding components, the slump loss of concrete is small over time.
6. The product has good safety performance. It is non-toxic, non irritating and radioactive, and does not contain substances harmful to reinforcement corrosion; Non flammable and explosive, non dangerous goods.
7. Good durability. The product can effectively improve the pore structure of concrete, so as to greatly improve the durability indexes of concrete, such as impermeability, carbonation and freeze-thaw resistance.
8. Easy to use. The product can be directly used, or can be dissolved in water and prepared into a solution type admixture, which is suitable for the requirements of various construction environments or mixing models.



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