... highly effective retarding & Water reducer Admixturehave the characteristics of retarding, super-plasticized, water-reducing, less loss of slump. It is very effective concrete ... It can be used in retarding the setting of concrete for 2 hoursto 36hours, and initial setting and ultimate ... timecorresponding, so that its convenient for conveying at long distance.2.With the water-reducing rate of 12%-25%, ...