本文讨论了NF萘系高效减水剂经过合成工艺的改进和其它有效化学成分的复合而形成的高效减水剂的新品种—NF—2000系列的特性,在具有较高减水率的同时,还有优越的塌落度保持的性能,在低水灰比下测定的塌落度,塌落度经时损失及硬化混凝土的强度等,试验证明,NF-2000、系列高效减水剂十分有利于高强、高流态混凝土的配制。 This article discusses the characteristics of the NF-2000 series, a new type of superplasticizer formed by the combination of NF-naphthalene-based superplasticizers and the synthesis of other effective chemical components, with a high water reduction rate. It also has excellent slump retention performance, slump measured at low water-cement ratio, slump loss over time, and strength of hardened concrete. Tests have shown that NF-2000 and series of superplasticizers are very effective. It is conducive to the preparation of high-strength, high-flow concrete.