对ＮＦ与木钙复合减水的效果进行了试验研究，讨论了其对不同品种水泥的适应性，并对掺入复合减水剂的砼进行了坍落度损失测定．结果表明，采用ＮＦ与木钙复合减水剂效果明显优于单掺ＮＦ或木钙，既可显著改善砼性能，又可大大降低减水剂成本 The effect of NF and wood calcium on water reduction was studied experimentally, and the adaptability to different types of cement was discussed. Slump loss was measured for the crucible containing the composite water reducer. The results show that the use of NF and wood calcium composite superplasticizer is significantly better than single-doped NF or wood calcium, which can not only significantly improve the performance of concrete, but also greatly reduce the cost of water-reducing agent.