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New melamine superplasticizer(powder) VF-8

VF-8 is used in concrete in industrial and civil buildings, hydraulic engineering, transport system, oil well drilling engineering, port engineering, and municipal engineering.

Category

Melamine series


Detail

Applications

VF-8 is used in concrete in industrial and civil buildings, hydraulic engineering, transport system, oil well drilling engineering, port engineering, and municipal engineering.

VF-8 is used in ready mix plants, precast and prestressed concrete plants.

VF-8 is especially for pumping concrete, as-cast-finish concrete, decorative concrete, self-leveling mortar and concrete.

VF-8 is suit for concrete with the requirements of high early strength, high fluidity.

VF-8 can be directly used with gypsum to improve the products performance.

VF-8 is used in amorphous refractory cast materials.

Properties

Excellent water-reducing ability.

Enhance physical, mechanical and durability properties of concrete.

High early strength, free bleeding and low air-entraining and low shrinkage.

Excellent compatibility with sulphoaluminate and calcium aluminate cement.

Uniformity

Powder VF-8

Item

Results

Item

Results

Appearance

faint yellow powder

Sodium sulfate (%)

≤2.9

Moisture content (%)

5.0+1%

Chloride ion (%)

≤0.6%

Paste fluidity (mm)

≥210

Fineness(0.315mm)

≤2%

Performance with 2.0% (liquid)VF-8 by mass of binder

Test items

Classification

Results

Standard

Set Retarding

Net plasma stability

qualified

qualified

qualified

Water reducing rate (%), ≥

14

14

20.0

Ratio of bleeding rate (%), ≤

90

100

27

Air content (%), ≤

3.0

4.5

2.6

Difference in setting time(min)

Initial setting

-90~+120

﹥+90

+28

Final setting

-

+1

Ratio of compressive strength (%), ≥

1d

140

-

181

3d

130

-

171

7d

125

125

161

28d

120

120

145

Ratio of shrinkage(%),≤

28d

135

110

Packaging, transport and storage

Powder VF-8 is available in 25kg film-lined bags. Other special package can also be available according to prior consultation.

The storage temperature should not be less than 0℃.

Quality guarantee of VF-8 is 12 months under normal conditions. If storage has surpassed the time, test must be done to confirm the validity.

Keyword

new

concrete