Natrium-Naphthalin-Formaldehyd (Frühfestigkeit)

This product is bonded with high efficient water reducing admixture, early strength admixture, enhancement admixture, has great power to reduce water, highly early strength and high enhancement characteristic. The product is typically applicable to cements with fewer mixture and convenient using, it widely uses in these situation needing early strength, high early strength, low temperature, using it, you will shorten construction time, enhance the template and location’s turnover rate, save the cement. Uniform nature targetTest projectTargetExteriorShallow brown powderSolid content %≥90Cl – content %≤1The cement only thick liquid flows≥180Degree of fineness (0.315mm) %<15 Matters of attention 1. The common mixture quantity: 0.8%～1.2%(according to weight of cement), compounds above C50 when the concrete mixes the quantity to be supposed above 1%; 2. This product uses dry mix, should lengthen the stir time suitably; 3. Under the negative warm condition constructs, should take the frostproof measure, strengthens maintains; 4. This product is packed to a 25 kg sack, and should be stored in dry, If the tide agglomerates, the performance is invariable, can be used after crushing. and Storage time: 2 years. Main performance 1. Greatly reduces the water. Rate of water reduce to reach 0.8%～1.2%, is compounds the fluid state concrete and excels in the concrete the ideal material. 2. Ultra is early strong. Mixes into this product, the concrete early strength large scale enhancement, moreover does not affect the later period intensity, 1 day may enhance 200% compared to the blank above,3 days to be possible to enhance 120%～130%,7 days to be allowed to enhance 70%～90%. 3. High enhancement. This product enhancement effect is obvious, its concrete not only early strength large scale enhancement, moreover the later period intensity also can stably develop,28 days compressive strength to be possible to enhance 20%～40%. 4. Under the same level condition, may save above cement 10%. 5. To steel bar non- corrosive action. 6. The product is suitable maintains to the normal temperature and the steam. Concrete performance index Test projectUnitStandard numberTop-quality productTop-quality productRate of water Reduce (≥)%85Rate of water Filter (≤)%95100Gas content (≤)%4.0Difference ofthe set timeInitially congealsMin-90 ～ +90End congealsMinResistant tocompression strength ratio1 day%1401303 days%1301207 days%11511028 days%105100Shrinkage ratio (≤)28 days%135135