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SODIUM NAPHTHALENE FORMALDEHYDE

  • Place of Orign: ,Shijiazhuang,Hebei,China
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  • Product Name.:SODIUM NAPHTHALENE FORMALDEHYDE

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SODIUM NAPHTHALENE FORMALDEHYDE

General Description:
SNF's full name is Sodium Naphthalene Sulfonate Formaldehyde Condensate. Its high purity makes cement particles with high dispersancy, low foaming, high range water reducing and obvious strengthening so that we can accelerate project mould turnover and construction speed, and save cement, and also improve cement mobility and workability. SNF is a high range concrete admixture of concrete cast-in-place, prefabricating, pump and curing.

Specification:




Item


Specification




OS-A grade


OS-P grade




Appearance


yellow beige powder


yellow beige powder




Fluidness (mm)


250 min


230min




Water exudation rate:


90%max


90%max




Gas content


3.0%max


3.0%max




Solid content


93%min


93%min




Sodium Sulphate


5%max


18%max




Cl


0.3%max


0.4%max




PH value


7-9


7-9




Surface Tension (N/m)


0(70±1)X10ˉ3N/m


0(70±1)X10ˉ3N/m


Parameters &Acceptance Criteria:





Parameters


Criteria


Actual Results


Parameters


Criteria


Actual Results




OS-A


OS-P


OS-A


OS-P




Water Reduction,%


≥20


≥19


21.8


20


Compression
Strength,%


1d


≥180


200




Water Penetration,%


≤90


79


3d


≥170


194




Air Content,%


≤2.0


1.6


7d


≥150


161




Temporal Distribution for setting (min)


Initial setting time




-90~+120


+22


28d


>130


142




Terminal setting time


+16


Shrinkage,%


28d


<130


125




Corrosion to steel bars


None


None




Note:Standard Blend Dosage:0.70%(as cement amount )


Technical features & adaptability:
1. Mixing amount: 0. 5-1. 0% of cementing materials, reducing rate: 20-30%
2. Keeping concrete strength intact & mixing this product, cement saving amount can reach 15-20%
3. Mixing this product 0. 7% (solid content) , slump constant increases above 10cm
4. Adapting to high strength, early strength, flowing, prefabricating & curing and prestressing force concretes etc.
5. The agent can be combined with other externally applied agents if pilot devement or laboratory experiment succeeds.

Application:
SNF has a good adaptability to various cements and it is not erodent to reinforcing bar and nonpoisonous and pollution-free. SNF has been applied to the highway, bridge, tunnel, water conservancy hydroelectric project, port, quay, skyscraper, power engineering, industrial civil building, prestressing force component and high range concrete etc.
SODIUM NAPHTHALENE FORMALDEHYDE

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Purity:

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