Natrium-Naphthalin-Formaldehyd (Pumpe verkehrs

This product is bond with high effective water reducing admixture, slow congeal medicinal preparation, pump transportation admixture, and plays a part in slowing congeals, enhance, increase slump of concrete admixture, improves the construction performance of concrete. It conform to JC 473-2001quality specification. Uniform nature targetTest projectTargetExteriorShallow brown powderSolid content %≥90Cl – content %≤1The cement only thick liquid flows≥180Degree of fineness (0.315mm) %<15 Main uses High, middle marking concrete, commodity concrete, great volume concrete, road surface, bridge, foundation pile, civil construction and so on. It can save cement, improve workability, enhance strength of concrete. Concrete performance index Test projectUnitStandard numberTop-quality productTop-quality productCaves in to increase the value (≥)mm10080Atmospheric pressure rate of filter (≤)%90100Pressure rate of filter (≤)%9095Gas content(≤)%4.55.5Caves in the retention value(≥)30 minmm15012060 minmm120100Resistant to compression strength ratio (≥)3 days%90857 days%908528 days%9085Shrinkage ratio (≤)28 days%135135 Main performance 1. Water reduce rate at 14%～22%; 2. Match ration being the same, slump may increase 80～120mm; 3. To steel bar non-corrosive action; 4. Slow congeal time is 2～4 hour, it can lengthen or shorten if needed. Matters of attention 1. The common mixture quantity: 0.8%～1.2%; 2. This product uses dry mix, should lengthen the stir time suitably; 3. This product is packed to a 25 kg sack, and Storage time: 2 years; 4. This product should be stored in dry, If the tide agglomerates, the performance is invariable, can be used after crushing.