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    Water proof admixture JF-12

    Quantity
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    Detail

    Applications

    JF-12 is liquid.

    JF-12 is suitable for transporting goods concrete at long bowls and pumping on the scene.

    JF-12 has the effect of delayed coagulation, when it mixed use with other admixture, test must be done to confirm the validity.

    When JF-12 is first used, it must be mixed according to above introduction in the testing laboratory.

    Properties

    Dosage: 1.4~2.4%, water-reducing rate: 13-26%.

    The same cement water ratio with JF-12 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 JF-12, 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.

    JF-12 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.

    Uniformity

    Item

    Results

    Item

    Results

    Appearance(liquid)

    Tan liquid

    pH  Value

    7-9

    Liquid density (20℃)

    1.227±0.02 g/ml

    Chloride ion (%)

    ≤0.6%

    Cement paste fluidity(mm)

    ≥210

     

     

    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

    24

    Difference in setting time(min)

    Initial setting

    -90

    -90

    +66

    Ratio of compressive strength (%), ≥

    3d

    100

    90

    134

    7d

    110

    100

    124

    28d

    100

    90

    117

    Permeated height rate(%), ≤

    30

    40

    20

    Moisture pickup rate(%), ≤

    48h

    65

    75

    45

    Ratio of shrinkage(%),≤

    28d

    125

    135

    107

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

    Packaging, transport and storage

    JF-12 is available in sealed plastic or iron tank. Other special package can also be available according to prior consultation.

    Quality guarantee of JF-12 is two 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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