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    Polycarboxylate retarding superplasticizer liquid (VF-2)

    Polycarboxylate retarding superplasticizer liquid (VF-2)

    Quantity
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    Detail

    Applications

    Impermeability mark of VF-2 can be P12, intensity of 100 times freezing and thawing cycle without loss and lasting quality has improved significantly.

    VF-2 is suitable for continuous concrete in mass in the hot season, reduce the hydration heat and avoid temperature cracks.

    VF-2 can improve the concrete workability and enhance the technical performance of concrete.

    To strictly control the content in accordance with the mix ratio of construction, do not exceedthe recommended dosage.

    Before VF-2 mixed use with other admixture, it must pass the laboratory test.it can not be mixed with naphthalene based water reducing admixture.

    VF-2 is chloride – free, low alkali, good for the adaptability of cement

    VF-2 is applicable to concrete construction in the temperature conditions of - 5 ° c - 40 degrees Celsius.

    VF-2 isn’t suitable for the cement admixture which is made by anhydrite and fluorgypsum and also unsuitable for prefabricated part of steam curing.

    Properties

    Excellent water-reducing ability. VF-2 can significantly reduce 15% ~40% mixing water in concrete with 1.5%~3.5% dosage.

    Setting time: setting time delay 2-4h.Raise special requirements in the service at pre-sales stage.

    Uniformity

    Item

    Results

    Item

    Results

    Appearance

    White  liquid

    Liquid density ((20℃))

    1.04±0.02 g/ml

    Cement paste fluidity(mm)

    ≥240mm

    pH  Value

    6-8

    Concrete performance with 2.0% dosage by binder mass

    Test item

    Quality index

    Results

    Water reducing ratio(%),≥

    15

    28.0

    ratio of bleeding rate(%),≤

    100

    0

    Air content(%),≤

    3.0

    2.0

    Difference in setting time
    (mm)

    initial setting

    +120--+240

    +168

    Final setting

    +153

    Ratio of compressive strength
    (%), ≥

    3d

    125

    173

    7d

    125

    152

    28d

    120

    140

    Ratio of shrinkage(%),

    28d

    125

    113

    Anti-freeze label,≥

    50

    100

    Reinforcement corrosion hazard

    None

    None

    Conclusion: the project is in line with retarding index of “Retarders as well as high efficiency water reducing agent” of DL/T5100-1999.

    Packaging, transport and storage

    Liquid VF-2 is available in sealed plastic or iron tank. Other special package can also be available according to prior consultation.

    Special measures should be taken to ensure entire package. Keep waterproof during transportation.

    Dry and well ventilated warehouse is needed for storage. Quality guarantee of VF-2 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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