Sure Chemical Co., Ltd.

China Manufacturer with main products: Ammonium Bicarbonate, Potassium Sorbate, Potassium Bicarbonate, Polycarboxylate Superplasticizer, Sodium Formate, Sodium Naphthalene...

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sodium naphthalene formaldehyde

Specifications

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.

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Ecvv Trade

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