Retarding superplasticizer retarding superplasticizer is naphthalene sulfonate formaldehyde condensate based, then the composite made of a variety of surface active substances retarding superplasticizer. Alkaline rate, liquidity, when the slump loss, no segregation, no Qinshui. At the same time can greatly improve the mobility of various age strength of concrete, especially in the late strength has significantly enhanced the effect is high strength concrete, concrete, concrete seismic isolation, self-leveling and other new technology of choice for grout admixtures. Homogeneity Item Index Item Index Appearance brown powder pink liquid PH value 7-9 brown liquid density, (g / ml) 1.20 ± 0.02 ≤10% moisture content of chloride-free fineness 0.315mm sieve I ≤ 12% defoaming time ≤30 seconds physical and mechanical properties of concrete factory pilot project specifications national standards (Grade A) water rates (%) ≥21 ≥12 QINSHUI rate ratio (%) ≤100 ≤100 gas content (%) ≤4.5 ≤4.5 setting time difference (min) Initial setting ≥ + 105> +90 Final setting - - compressive strength ratio (%) of not less than 1d - - 3d 130 125 7d 130 125 28d 120 120 shrinkage ratio (%) 28d ≤120 ≤135 steel corrosion should describe the role of non-rusting steel main technical performance rusting to 1. content of 0.5-1.5% of the total amount of glue (powder), 1.0-3.0% (liquid); water reduction rate up to 15-30%. 2. When the concrete strength and slump with the same basic reference concrete, can save 15-20% of cement. In the same proportion and with the conditions of slump, concrete strength increased 40-80%, 3 days, 7 days strength increased by 30-60%, 28 days strength increased by 20-40%. 3. The incorporation of this agent, which can greatly improve the workability of concrete, improve and enhance the mechanical properties of concrete. 4. Suitable continuous mass concrete pouring hot season, reducing the hydration heat, reduce the temperature stress of concrete, to avoid temperature cracks. 5. impermeability grade up S10,100 freeze-thaw no significant loss of strength, durability, can significantly improve. Can also be formulated highly resistant concrete carbonation. 6. small slump loss, in favor of pumping concrete long-distance transport, long put pumping or gravity effect without affecting the concrete. 7. retarding time: delay setting time 2-5h, when there are special requirements, in the pre-service proposed. 8. This product has no chlorine and low, good adaptability to various cement can be used for a variety of reinforced concrete works. 1. Direct application of technical points to powder and cement mixer while incorporation and appropriate to extend the mixing time. 2. You can match the solution, converted into solid mixing. 3. The combined use with other admixtures, to be determined by the test. 4. Construction in strict accordance with the ratio of control content, do not over-dosage. 5. Suitable for concrete construction under 5-40 ℃ temperature conditions. Packaging and storage 1. The product is a plastic woven bag lined with double-wrapped bag 25kg. Liquid metal pail or agreement with a large bulk. 2. It should be stored in a cool, dry coffers. 3. This product is valid for two years, can still be used after the expiration after passing the test.