UNF-B Naphthalene sulphonate formaldehyde

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  • Place of Origin:Shandong, China (Mainland)

  • Model Number:UNF-B

  • Appearance:Light Brown Powder

  • Solid Contcnt:92%Min

  • Sodium Sulpate Content:10%

  • PH Value:7-9

  • WaterReducing Ratio:17%-25%

Packaging & Delivery

Delivery Detail:10days after sales confirmed


Na2SO4--10% Max(Manufacturer selling,annual output 300,000MT,perfect quality and competitive price)


1.Remarkable Plasticity: As a condition of blending where amount of cement and collapsibility are fixed aforehand, mixing water can be decreased by 17-25% when it is admixed with reinforced concrete at 0.5-1.0%. Statistically, compression strength on the lst day, the 3 rd day and the 28 th day after single application is increased by 60-95% and 25-50% respectively when it is added at standard blend dosage. As a result, compression strength, tensile strength, buckling strength and modulus of elasticity will be improved to some extent.
2. Improve miscibility of concrete amalgamator with water and collapsibility as well. As a condition of equivalent blending, collapsibility can be increased 4-7 times when it is added at 0.7% blend dosage.
3. 15-18% of cement can be reserved when the agent is blended at 0.7% blend dosage, which is preconditioned by same collapsibility and strength.





net starch fluidity (mm )

≥ 240

content of Cl (%)


PH value


surface tension(N/m)

(7 1 ± 1) × 10 -3

solids content(%)

≥ 92

Na 2 SO 4 content(%)





Actual Results



Actual Results

Water Reduction, %

≥ 19


Compression strength, %


≥ 180


Water Penetration, %

≤ 90



≥ 170


Air Content, %

≤ 2.0



≥ 150


Temporal Distribution for setting (min)

Initial setting time

-9 0 +120



≥ 130


Terminal setting time


Shrinkage, %


≤ 130


Corrosion to steel bars



Note: Standard Blend Dosage:0.7 %(as cement amount)

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