一种小分子减水剂的制备与应用

来源 :2012年中国建筑学会年会 | 被引量 : 0次 | 上传用户:buyaowenwo123456
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制备了一种小分子减水剂,通过净浆、砂浆和混凝土试验、发现,该剂种可改善聚羧酸系高性能减水剂对含泥量敏感的问题,并能提高混凝土的早期和后期强度.这对聚羧酸系高性能减水剂的进一步发展具有一定的意义.总结了小分子减水剂的合成,小分子减水剂与聚梭酸系高性能减水剂的复合,XP具有较高的坍落度保持能力,特别是对传统的葡萄糖酸钠而言,XP不影响拆模,早强效果比PC更高,且后期强度仍然较高。这一点是常用作保塑剂的葡萄糖酸钠所不具备的。
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