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本文以铝酸钙膨胀剂与FDN减水剂的砂浆试验为基础，研究了铝酸钙膨胀剂与减水剂复合使用时对膨胀能、流动度的影响。从微观层次上，探讨了它们之间相容性的作用机理。试验结果表明，相容性的好坏与其成分有一定的关系。
In this paper, based on the mortar test of calcium aluminate expander and FDN water reducer, the effect of calcium aluminate expander and water reducer on the expansion energy and fluidity was studied. From the micro level, the mechanism of compatibility between them is discussed. The test results show that the compatibility has a certain relationship with its composition.