Beijing Jiankai Concrete Admixture Co.,Ltd

Beijing, China

Jk-02np high range water reducing concrete admixturesuperplasticizer astm c494, type f, astm c 1017sodium naphthalene sulfonate formaldehyde (na2so418%) descriptionjk-02np is a naphthalene-based highly effective water reducing agent for promoting accelerated early and ultimate strength development, commonly referred to as a superplasticizer, also named naphthalene sulfonate formaldehyde condensate (nsf), snf, pns and fdn etc. jk-02np contains no chloride, non-corrosive to steel bars, non-poisonous, odorless, and non-flammable. It complies with astm designation c494, type f, astm c 1017, gb8076-2008 and gb50119-2003 etc. uses1. produces the high slump flowing concrete with no loss in strength. 2. produces low water/cement ratio concrete with high strengths. 3. ideal for using in high strength concrete, flowing concrete, early strength concrete, precast steam curing concrete, prestressed concrete etc. Where it is desired to keep the water/cement ratio to a minimum and still achieve the degree of workability necessary to provide easy placement and consolidation. 4. be used as basic material to produce others compound admixtures, (such as accelerating and water-reducing admixture, retarding and water-reducing admixture, pumping antifreeze and pumping water-reducing admixture, etc.) advantages1. substantial improvement in workability without increased water or the risk of segregation. Normal set without retardation, even when overdosed. Improved density and surface finish. 2. high water reducing rate. 40% increase in 28 day strengths. High strengths after 8 hours. 3. compatible with portland cement, normal portland cement, portland slag cement, flyash cement, portland pozzolanic cement, etc. 4. improve workability (slump) of concrete when added into mixing truck. specificationsitems criteria actual results(c0.75%)appearance -- light brown powdersolid content % 92 min 92.55moisture % 8.0 max 7.45fineness (0.315mm remains) % 15.0 max 9ph value 7 - 9 7.8sodium sulfate content % 18.0 max 16.60chloride content % 1.0 max 0.21surface tension 68-72 mn/m 70cement flowing rate 230mm 240mmwater reducing rate 18% min 20%steel-bar corrosion none none dosage 0.5 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. test data sheetitems dosage rate (cx%) water (g) slump (mm) water reducing rate (%) compressive strength (mpa) /compressive strength rate (%)1 day 3 days 7 days 28 daysreference concrete 0 2615 80 0 3.16/100 12.89/100 18.62/100 22.72/100jk-02np 0.75 2090 75 20.1 6.87/217.1 22.54/174.7 29.12/156.3 35.92/158.1 package, storage & shelf life for powder: woven plastic bag with film liner. Net weight: 25kg +/- 0.2 kg. it should be stored in a dedicated warehouse that is well-ventilated and dry and keep away from moisture. shelf life: minimum 12 months. After the expiration date, it can be used if testing results is qualified.

Descriptionjk-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 (na2so45%) 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. usesjk-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 0degrees. 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. advantage1. 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. 2. 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. 3. high applicability: it can be used with different variety of cement. It is compatible with other admixtures. 4. 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. 5. effective durability: it can modify the structure of concrete and increase the property of anti-seepage, anti-freezing, and carbonization. 6. 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. specificationsitems criteria actual results(c0.75%)appearance -- light brown powdersolid content % 92 min 92.65moisture % 8.0 max 7.35fineness (0.315mm remains) % 15.0 max 9.2ph value 7 - 9 8.5sodium sulfate content % 5.0 max 3.8chloride content % 1.0 max 0.11surface tension 68-72 mn/m 71cement flowing rate 240mm 265mmwater 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. test data sheet items dosage rate (cx%) water (g) slump (mm) water reducing rate (%) compressive strength (mpa) /compressive strength rate (%)1 day 3 days 7 days 28 daysreference concrete 0 2555 82 0 4.34/100 13.70/100 20.19/100 24.06/100jk-01np 0.75 1986 89 22.3 7.63/173.3 23.85/173.4 30.84/150.7 33.72/137.2 package, storage & shelf lifefor powder: woven plastic bag with film liner. Net weight: 25kg +/- 0.2 kg. it should be stored in a dedicated warehouse that is well-ventilated and dry and keep away from moisture. shelf life: minimum 12 months. After the expiration date, it can be used if testing results is qualified.