Sodium Naphthalene Formaldehyde

Descripción del producto

Description SNF*5 is a Sodium Naphthalene Formaldehyde. This product is made by industrial Naphthalene, Beta-sulphonate, Formaldehyde and Alkali via sulphuration, hydrolyzation, condensation and neutralization reactions. It belongs to non-air-entraining superplasticizer. SNF*5 is non-poisonous, odorless, non-flammable and non-corrosive to steel bars. SNF*5 meets the requirements of the PRC's Standardization of concrete admixture of GB********7 and GB*********3. Features, Properties & Characteristics Item Index Value Item Index Value Appearance Light brown powder PH Value 7～9 Solid Content ≥*2％ Fluidity of cement paste ≥**0 mm Sodium Sulfate Content ＜5% fineness 0.**5mm sieve residue<*5％ Chlorides Content ＜0.3% Surface Tension （*0�1）�***3N/ m Performance Test, (Dosage, Cement�0.6％) Inspection Items Inspection Criteria Actual Results First Grade Qualified Water Reducing Rate (%, >) *0 *8 *1 Ratio of Bleeding Rate（％, <） *0 *5 *9 Air content（％） ＜3.0 ＜4.0 2.0 Difference of Set Time (min) Initial －*0～＋**0 **2 Final **6 Ratio of compressive strength（％） 1d ＞**0 ＞**0 **6 3d ＞**0 ＞**0 **2 7d ＞**5 ＞**5 **6 *8d ＞**0 ＞**0 **8 Ratio of Shrinkage （％） *0d ＜**5 *2 Steel-bar Corrosion None None If you are interested in our products , you can browse our website *****