JK-01NP Concrete admixtures (Na2SO4 less 5%)

1 High Range Water Reducing Concrete Admixture 2 Superplasticizer ASTM C494, Type F 3 High water reducing 20-30%

Sodium Naphthalene Sulfonate Formaldehyde (Na2SO4≤5%)

Description

JK-01NP is a high range water reducer, high concentration naphthalene-based superplasticizer, also named Naphthalene Sulfonate Formaldehyde Condensate (NSF), SNF, PNS and FDN etc.

JK-01NP (Na2SO4≤5%) contains no chloride, non-corrosive to steel bars, non-poisonous, odorless, and non-flammable. Thus, it meets the requirements of chemical admixture specifications for concrete: comply with ASTM C 494, Type F. ASTM C 1017, GB8076-2008 and GB50119-2003 etc.

Uses

JK-01NP possesses the features of no retarding, no air-introducing, superplastic high water-reducing and strength enhancing.It has no chloride, low alkali content, low sulphonate, and high purity. It can be widely used in different concretes with less dosage and easy to use.JK-01NP can be applied to make flowing, strong or steam-curing concrete. The minimum working temperature can be as low as 0°Cdegrees. In steam curing, concrete with superplasticizer has to be strong enough before heating. The steam curing specification has to be pre-tested. It is particularly used as base material for compound admixtures.It can prevent from the alkali-aggregate reaction because of the biggish alkali reactivity of aggregate or the alkali-aggregate reaction in the moist environment.Specifications

Items	Criteria	Actual results(C×0.75%)
Appearance	--	Light brown powder
Solid Content %	92 min	92.65
Moisture %	8.0 max	7.35
Fineness (0.315mm remains) %	15.0 max	9.2
PH value	7 - 9	8.5
Sodium Sulfate Content %	5.0 max	3.8
Chloride Content %	1.0 max	0.11
Surface Tension	68-72 Mn/m	71
Cement Flowing Rate	240mm	265mm
Water Reducing Rate	20% min	22.3%
Steel-bar Corrosion	None	None

 Dosage0.5-1.2% 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-01NP 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.

Advantage

High water-reducing rate: JK-01NP can reduce water 20-30%. It has features of superplasticizer, effectively increases concrete fluidity and reduces water penetration and segregation and improves the encapsulation force of the concrete with reinforcing steel bar.Strengthening: Given the same amount of cement and slump requirement, this product with the dosage 0.5-1.2% can increase the concrete early strength and reinforced effect by 50-100%, 40-70%, 25-60% and 20-60% on day 1, 3, 7, and 28 respectively.High applicability: It can be used with different variety of cement. It is compatible with other admixtures.Low sodium Sulfate content: The aqueous solution has no crystals in winter, which can avoid pipeline congestions when JK-01 NP applied. It is suitable for automatic working.Effective durability: It can modify the structure of concrete and increase the property of anti-seepage, anti-freezing, and carbonization.Easy to use: It can be added directly or used after dissolved in water. It can be used for different working condition and concrete mixer.

JK-01NP Concrete admixtures (Na2SO4 less 5%)