Retarder

Citric Acid 日期：2017-6-12 11:02:08 点击数：554 Description CITRIC ACID ZY-N is a high-performance setting retarder for wide range of concrete industry.  Chloride-free.Delivered in powder form. Object  *Mass-pours of concrete  *In large masses of concrete,freshly batched concrete for long-distance  hauls,shotcrete,and cast concrete. Advantage  *High workability,no segregation,no water bleeding.  *Extending concrete initial setting time for proper finishing without cold joint during hot weather.  *Increasing the workable time of concrete up to several hours.  *Providing flexibility in planning and scheduling of concrete pours.  *Non-toxicity,Inflammable,Non-corrosion to steel bars. Standard Meets  *GB8076-1997 ;  * A.S.T.M. C494-1980 Type B;  *GB 50119-2003 Instructions for Use * For normal using,the dosage rate varies from 0.10% to 0.15% by cement volume. * In some cases when the dosage of admixtures exceeds a certain critical point,hydration of cement *compounds will hang over a certain stage,and the cement past will never set.  *Based on above term,it is important to avoid overdosing,and pilot tests should be carried out to optimize the dosage.  *It can also be applied after being dissolved into water with proportion 1:5 or 1:10.  *For advice and assistance on how to conduct such tests, the Technical Services of SDZY are available. Packages and Storage  *Packing in 25kg/40kg/650kgs bags,or under clients’ requestion.  *Unlimited in well sealed and unbroken bags, stored in shade and avoiding excessive heat.