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Specification Items Criteria Actual results(CÃ0.75%) Appearance -- Light brown powder Solid Content % 91 min 91.2 Moisture % 8.0 max 7.45 Fineness (0.315mm remains) % 15.0 max 9 PH value 7 - 9 7.8 Sodium Sulfate Content % 18.0 max 16.60 Chloride Content % 1.0 max 0.21 Surface Tension 68-72 Mn/m 70 Cement Flowing Rate 230mm 240mm Water Reducing Rate 18% min 20% Steel-bar Corrosion None None Dosage 0.5 â 1.5% by weight of cement. Exact dosage rates are dependent on the type of effect sought, quality of cement and aggregates, water/cement ratio and ambient temperature. Therefore, in many cases it is advisable to carry out trial mixes. JK-02NP can be added directly or added in after dissolved in water. It can be added during mixing and after-mixing (better). The after-mixing approach can achieve better result.