聚羧酸高性能减水剂虽然具有极好的减水增强性能,较好的保坍性能,较低的收缩率,但施工实践发现,该产品却存在比常用高效减水剂更难掌握的应用技术问题。如对水泥的适应性、与其它外加剂的相容性、过量的引气、对混凝土用水量及骨料中含泥率的敏感性。只有掌握产生上述问题的规律,正确应用才能取得更好的技术经济效益。 Polycarboxylate high-performance water-reducing agent has excellent water-reducing performance, good slump-proof performance and low shrinkage rate. However, the practice of the polycarboxylate superplasticizer has found that it is harder to handle than conventional superplasticizers Applied technical issues. Such as adaptability to cement, compatibility with other admixtures, excessive bleed air, sensitivity to concrete water usage and aggregate mud content. Only by grasping the law that produces the above-mentioned problems and correctly applying it can obtain better technical and economic benefits.