Sodium Naphthalene Formaldehyde(hihg-efficient)

This product essential component is the β- naphthalene monosulfonic acid formaldehyde condensation compound sodium salt, is one kind of non- cited gas high efficiency reduces the water medicinal preparation, the product conforms to the GB8076-1997 quality specification.Main performance 1. The quantity of mixtures is 0.5% 1% of the weight of cement, water reducing rate can reach 12% 25%; 2. In the early stage strength enhances quickly, 1 3 days’ strength, to blank concrete can enhance 30% 60%; 3. The enhancement effect is obvious, 28 days’ strength to blank concrete may enhance 15% 40%; 4. When the cement content is same and the intensity is close, the slump may increase about 100 mm; 5. When concrete’s workability and intensity are close, it may save cements about to10 percent; 6. Using ultra mixing method, may compound concrete C60 C80 (the quantity of mixtures is 1% 2%). Main uses It is suitable to ordinary concrete, high strength concrete, early strength concrete, fluid state concrete, pre-stressed concrete and special concrete. Matters of attention 1. The recommend mixes quantity: 0.5% 1% (according to weight of cement). Determine the best mixes quantity should before use by try-match method. 2. This product uses easily and conveniently, wet mix as well as dry mix can do dry mix should lengthen the stir time suitably. 3. This product is packed to a 25 kg sack, should be stored in dry, well ventilated environment. 4. If the tide agglomerates, the performance is invariable, and can be used after crushing. 5. Storage time: 2 years. Uniform nature targetTest projectTargetExteriorBrown brown powderSolid content %≥90The cement only thick liquid flows mm≥220Surface tension mN/m70±1Degree of fineness(0.315mm sieves the remainder) %≤5Na2SO4 %18±1Cl – content %≤0.3 Concrete performance index ProjectStandard numberTop-quality productQualified productRate of water reduce %≥12≥10Rate of filter %≤90≤95Gas content %≤3.0≤4.0Difference of the set time minInitially congeals-90 +120-90 +120End congeals-90 +120-90 +120Resistant to compression strength ratio%1 day≥140≥1303 days≥130≥1207 days≥125≥11528 days≥120≥110Shrinkage ratio( 28 days) %≤135≤135Steel rust eclipse functionNoNo