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Polycarboxylate water proof superplasticizer (VF-10)

VF-10 has the effect of delayed coagulation, when it mixed use with other admixture, test must be done to confirm the validity.

Category

Polycarboxylate series


Detail

Applications

VF-10 has the effect of delayed coagulation, when it mixed use with other admixture, test must be done to confirm the validity.

When VF-10 is first used, it must be mixed according to above introduction in the testing laboratory.

Properties

Dosage: 1.8~3.5%, water-reducing rate: 18-30%.

The same cement water ratio with VF-10 can improve incipient slump constant of concrete 10cm above,and it is suitable for transporting goods concrete at long bowls.

Greatly improved the workability、moisture retention、cohesiveness of VF-10, and can reduce pipeline pressure when pump.

There is delayed coagulation in initial set, can reduce the early rate of exothermic reaction during hydration and be favorable to pour concrete in mass.

To improve and change the pressive strength、rupture strength、tensile-strength、impermeability、lasting quality of concrete.

VF-10 applies to concrete work under the condition of -5℃-40℃.

Impervious gradation of mortar can be P8-P10, impervious gradation of C30 concrete can be P14. The highest impervious gradation of concrete can be P40.

VF-10 cannot be used with naphthalene based water reducing admixture.

Experiment must be done when VF-10 is used together with other admixtures.

Uniformity

Item
Results

Results

Item

Results

Appearance

White liquid

pH  Value

6-8

Density (20℃)

1.03±0.02 g/ml

Chloride ion (%)

≤0.6%

Cement paste fluidity(mm)

≥220

Cement paste invariability

Pass

Concrete performance with 2.0% dosage by binder mass

Test item

Quality index

Results

I

II

Cement paste invariability

pass

pass

pass

Ratio of bleeding rate (%), ≤

50

70

0

Difference in setting time(min)

Initial setting

-90

-90

+24

Ratio of compressive strength (%), ≥

3d

100

90

176

7d

110

100

147

28d

100

90

128

Permeated height rate (%), ≤

30

40

18

Moisture pickup rate(%), ≤

48h

65

75

45

Ratio of shrinkage(%),≤

28d

125

135

104

Conclusion: the project is in line with acceptable end product index of “Water-repellent admixture” in JC474-2008.

Packaging, Transport and Storage

VF-10 is available in metal pail or iron tank. Other special package can also be available according to prior consultation.

VF-10 must be stored at the temperature above 0℃. Special measures should be taken to ensure entire package.

Dry and well ventilated warehouse is needed for storage. Quality guarantee of VF-10 is one year under normal conditions. If storage has surpassed the time, test must be done to confirm the validity.

Keyword

polycarboxylate

concrete