Is it normal for water reducing agent to crystallize at low temperatures? What are the main symptoms?

the water-reducing agent itself has a high water-reducing rate and excellent working performance. it is especially suitable for formulating high durability, large fluidity, high slump retention, high strength and fair-faced concrete projects. therefore, many of its applications are accustomed to high development requirements for functional concrete. however, in winter, the crystallization problem of sodium sulfate…