With the merits of higher fluidity effect and preventing concrete mix from slump-loss with time duration, poly-carboxylic acid series water-reducer agent (WRA) has been widely studying.
聚羧酸系减水剂具有高减水率和抑制混凝土坍落度经时损失的优点，研究开发新型的聚羧酸系减水剂受到国内外广泛关注。
With the merits of higher fluidity effect and preventing concrete mix from slump-loss with time duration, poly-carboxylic acid series water-reducer agent (WRA) has been widely studying.
聚羧酸系减水剂具有高减水率和抑制混凝土坍落度经时损失的优点，研究开发新型的聚羧酸系减水剂受到国内外广泛关注。
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