摘   要：研究了葡萄糖酸钠、羟基乙叉二磷酸（HEDP）、2-磷酸基-1，2，4-三羧酸丁烷（PBTCA）、白糖、三聚磷酸钠五种缓凝材料对湿拌砂浆性能的影响。结果表明，掺入缓凝剂后，湿拌砂浆的初始稠度有了不同程度的增加，掺葡萄糖酸钠的湿拌砂浆初始稠度增幅最大；缓凝剂的加入能明显延长湿拌砂浆的凝结时间,在相同的掺量下，其中掺羟基乙叉二磷酸的湿拌砂浆缓凝时间最长；缓凝剂的加入能明显降低湿拌砂浆的稠度经时损失，掺有HEDP的湿拌砂浆稠度经时损失最小，但是掺有HEDP和PBTCA的湿拌砂浆后期会出现泌水的现象;缓凝剂的不同掺量对湿拌砂浆28d强度影响不大。

Abstract: The influence of five kinds of retarded materials, sodium gluconate, hydroxy two phosphoric acid (HEDP), 2- phosphate group -1, 2, 4- three carboxylic acid butane (PBTCA), sugar and sodium tripolyphosphate, on the performance of wet mix mortar are studied. The result shows that added with the retarder,the initial consistency wet-mix mortar are extended to varying degrees, among them, the initial consistency of wet mix mortar with sodium gluconate increased most. The setting time of wet mix mortar can be obviously prolonged by adding retarde. Under the same dosage, the wet mixing mortar with hydroxyl two phosphoric acid has the longest retarding time. The addition of retarder can obviously reduce the loss of consistency of wet mix mortar，wet-mix mortar with HEDP has the least loss of consistency, but wet-mixed mortar with HEDP or PBTCA will appear the phenomenon of bleeding at later period. The different dosage of retarder has little influence on the strength of wet mixing mortar for 28 days.