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    New high-performance pumping agent VF-5

    New high-performance pumping agent VF-5

    Quantity
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    Detail

    Applications

    VF-5 is liquid.

    VF-5 is suitable for commercial concrete, fair-faced concrete and ornamental concrete.

    VF-5 has the effect of delayed coagulation, when it mixed use with other admixture, test must be done to confirm the validity.

    When VF-5 is first used, it must be mixed according to above introduction in the testing laboratory.

    VF-5 is suitable for transporting goods concrete at long bowls.

    Properties

    Dosage: 1.5~3.5%, 1.8% is the best amount of additive, water-reducing rate: 13-26%.

    The concrete with VF-5 can reach the standard of fair-faced concrete which has bright surface, uniform color and less bubble, it can improve incipient slump constant of concrete 10cm above.

    Greatly improved the workability、moisture retention、cohesiveness of VF-5, 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-5 applies to concrete work under the condition of 5℃-40℃.

    VF-5 cannot be used with naphthalene based water reducing admixture.

    Experiment must be done when VF-5 is used together with other admixtures.

    Uniformity

    Item
    Results

    Results

    Item

    Results

    Appearance

    chocolate brown liquid

    pH  Value

    7-9

    Liquid density (20℃)

    1.18±0.02 g/ml

    Chloride ion (%)

    ≤0.6%

    Sulfate ion content (%)

    3.5%

    Surface tension

    71(20℃dyn/c㎡)

    Concrete performance with 2.0% dosage by binder mass

    Test item

    Quality index

    Results

    Water reducing ratio(%),≥

    12

    22.0

    ratio of bleeding rate(%),≤

    70

    -

    Air content(%),≤

    5.5

    2.1

    1h change(mm)

    Slump(mm)

    ≤80

    20

    Ratio of compressive strength
    (%), ≥

    3d

    -

    -

    7d

    115

    147

    28d

    110

    125

    Ratio of shrinkage(%),

    28d

    135

    103

    Reinforcement corrosion hazard

    Explanation of Reinforcement corrosion hazard must be done

    None

    Conclusion: the project is in line with acceptable end product index of “pumping agent” in JC473-2001 and the “pumping agent” index of GB8076-2008.

    Packaging, Transport and Storage

    VF-5 is available in metal pail or iron tank. Other special package can also be available according to prior consultation.

    VF-5 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-5 is one year under normal conditions. If storage has surpassed the time, test must be done to confirm the validity.

    Corresponding parameter set not found, please add it in property template of background
    暂未实现,敬请期待
    暂未实现,敬请期待
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