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    High performance polycarboxylate superplasticizer VF-2

    High performance polycarboxylate superplasticizer VF-2

    Quantity
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    Detail

    Applications

    VF-2 is used in concrete in industrial and civil buildings, hydraulic engineering, transport system, port engineering, and municipal engineering.

    VF-2 is used in ready mix plants, precast and concrete plants.

    VF-2 is suit for ordinary concrete, high strength concrete, self-compaction concrete and as-cast-finish concrete.

    Properties

    Excellent water-reducing ability. VF-2 can significantly reduce 40% mixing water in high strength concrete.

    Enhance physical and mechanical properties of concrete.

    Enhance durability of concrete.

    Enhance volumetric stability of concrete.

    Excellent compatibility with Portland cement.

    High water retention capacity.

    Usage

    For powder VF-2, the dosage is typically 0.8%~2.5%, 3.0% for high strength concrete.

    The amount of VF-2 used in concrete will be slightly adjusted depending upon job requirements, such as concrete strength, variations in cement, aggregate and other job site conditions. Experiments for appropriate dosage must be carried out when changing concrete mix proportion or materials.

    VF-2 can be added in concrete with other raw materials directly.

    VF-2 cannot be used with naphthalene based water reducing admixture.

    Experiment must be done when VF-2 is used together with other admixtures.

    Uniformity

    Item

    Index

    Item

    Index

    Appearance

    yellow brown powder

    Classification

    High performance water-reducing admixture

    Chloride Ion

    ≤0.6%

    PH  Value

    6-8

    Cement Paste Fluidity

    ≥220mm

    Density (g/ml)

    1.10±0.02 g/ml

    Concrete performance with 1.0% VF-2 by binder weight

    Test item

    Quality index

    Results

    Hardening Accelerating

    Standard

    Set Retarding

    Water reducing rate (%), ≥

    25

    25

    25

    25.4

    Ratio of bleeding rate (%), ≤

    50

    60

    70

    0

    Air content (%), ≤

    6.0

    6.0

    6.0

    3.5

    Difference in setting time(min)

    Initial setting

    -90~+90

    -90~+120

    ﹥+90

    +60

    Final setting

    +46

    1h change

    Slump(cm)

    ≤80

    ≤60

    30

    Ratio of compressive strength (%), ≥

    1d

    180

    170

    235

    3d

    170

    160

    210

    7d

    145

    150

    140

    183

    28d

    130

    140

    130

    150

    Ratio of shrinkage(%),

    28d

    110

    103

    Conclusion: the project is in line with “high performance water reducer” index of GB8076-2008.

    Packaging, Transport and Storage

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

    Special measures should be taken to ensure entire package.

    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
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    暂未实现,敬请期待
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